Strong synonyms

energetic

Of or relating to energy.

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sturdy

Resolute, in a good sense; or firm, unyielding quality.

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firm

Fixed (in opinion)

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robust

Requiring or characterized by much strength or energy:

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in fine feather

Physically strong; said especially of persons

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muscular

Having or suggesting great forcefulness, especially at the expense of subtlety:

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stalwart

Brave; valiant

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powerful

Effective or potent:

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hearty

Enjoying or requiring much food:

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thewy

Muscular; brawny.

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tough

Able to withstand great strain without tearing or breaking; strong and resilient:

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heavy

Large, as in number or quantity:

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stout

Large; bulky, thickset; corpulent, fat.

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determined

The definition of determined is someone with their mind made up about something.

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3

able-bodied

(Nautical) Capable of performing all requisite duties, as a seaman, specifically in the Royal Navy a rating between leading and ordinary.

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sinewy

Having good muscular development

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hardy

Able to withstand fatigue, privation, etc.; robust; vigorous

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sharp

Fierce or impetuous; violent:

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wiry

Produced by or as if by a vibrating wire

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forthright

Straightforward; not evasive; candid and direct

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strong (related)

Having a high concentration of an essential or active ingredient.

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having the makings

Physically strong; said especially of persons

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keen

Vehement; fierce; as, a keen appetite.

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manly

Of, relating to, or characteristic of men, especially when considered traditionally masculine, as in being courageous or direct:

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enduring

Lasting; permanent; durable

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unassailable

That cannot be successfully denied

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hot

(Slang) Performing with great skill and daring:

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doughty

Hardy; strenuous; dauntless; resolute.

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vigorous

The definition of vigorous is strong and energetic.

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inebriating

Potent in effect

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intense

Involving or showing strain or extreme effort:

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potent

Able to have an erection and hence to engage in sexual intercourse

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effective

Existing in fact; actual:

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fortified

Physically strong; said especially of things

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steady

Free or almost free from change, variation, or fluctuation; uniform:

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durable

The definition of durable is someone or something that lasts for a long time, even with frequent use.

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fertile

The definition of fertile is someone or something capable of reproducing and also is the production of many new ideas.

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eager

The definition of eager is ready and impatient to do something.

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puny (antonym)

The definition of puny is something insufficient in size or strength.

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hale

Free from infirmity or illness; sound.

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heroic

The definition of heroic is a strong and courageous person or a story about deeds by those with these qualities.

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steadfast

The definition of steadfast is fixed, firm and staying strong.

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high-powered

Possessing great physical or political power

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cogent

Reasonable and convincing; based on evidence.

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resolute (related)

Having or showing a fixed, firm purpose; determined; resolved; unwavering

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intelligent (related)

Capable of some independent functioning because equipped with a microprocessor or computer

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distinct

Noticeably different from others; distinctive.

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2

drastic

The definition of drastic is something radical or extreme.

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irresistible

Too strong, fascinating, compelling, etc. to be resisted or withstood

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spirituous

Having the nature of or containing alcohol; alcoholic.

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virile

Of or capable of copulation; sexually potent

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made of iron

Physically strong; said especially of persons

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forcible

Having a powerful effect; telling

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deep

(Of a hole, water, ravine, cut, etc.) Having its bottom far down.

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power-packed

Potent in effect

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explicit

Fully developed or formulated:

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hard-hitting

(Informal) Forceful, aggressive, boldly frank, etc.

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solid

The definition of solid is something which is sturdy and substantial or an object that isn't hollow.

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well-founded

Properly substantiated

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difficult

(Often of a person, or a horse, etc) Hard to manage, uncooperative, troublesome.

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emphatic

(Gram.) Designating or of a present tense or past tense in which a form of do is used as an auxiliary for emphasis (Ex.: I do care, we did go)

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irresolute (antonym)

Not resolute; wavering in decision, purpose, or opinion; indecisive; vacillating

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forceful

With assertive force; powerful.

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secure

Confident in opinion; not entertaining, or not having reason to entertain, doubt; certain; sure; commonly used with of.

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mighty

(Informal) Excellent, extremely good.

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fast

Firm in loyalty:

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active

Being in physical motion:

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great

Very good.

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fixed

Not changing, not able to be changed, staying the same.

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hard

Using or based on data that are readily quantified or verified:

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reinforced

Physically strong; said especially of things

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rich

Highly varied, developed, or complex:

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definite (related)

The definition of definite is something that has limits, is clear in meaning, absolutely true and positive.

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fit

(Informal) Disturbed enough; inclined

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glaring

Blatant, obvious.

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influential

Having or exerting influence.

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intoxicating

Very exciting and stimulating, especially as if by alcohol or some stimulant.

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invincible

The definition of invincible is someone or something that cannot be harmed or that is too powerful to be destroyed.

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overpowering

That overpowers; so strong as to be overwhelming.

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frangible (antonym)

Capable of being broken; breakable.

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easy-going (antonym)

Alternative spelling of easygoing.

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mistakable (antonym)

Capable of being mistaken or misunderstood:

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weak (related)

Lacking in vigour or expression.

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dynamic

Characterized by continuous change, activity, or progress:

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sound

(UK, slang) Good.

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furious

Full of intensity; energetic or fierce:

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alcoholic

Caused by alcohol or liquor containing it

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warm

Predominantly red or yellow in tone:

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brawny

Strong and muscular

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staunch

Firm; steadfast; loyal

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impetuous

Acting or done quickly with little or inadequate thought.

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outrageous

Being well beyond the bounds of good taste:

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unpowerful (antonym)

Not powerful.

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infirm (antonym)

Weak or ill, not in good health.

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fierce

(Slang, US) Of exceptional quality, exhibiting boldness or chutzpah.

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husky

Heavily built:

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having what it takes

Physically strong; said especially of persons

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unimpaired

Not impaired

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well-established

Physically strong; said especially of things

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athletic

The definition of athletic is a person, place, or thing that is strong, vital, and/or busy.

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big

Of great significance; momentous:

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rugged

Demanding great effort, ability, or endurance:

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strict

Not loose or vague; exact or precise:

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straight

Extending continuously in the same direction without curving:

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clear

Free of obstacles.

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safe

Free from danger or injury; undamaged or unhurt:

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obvious (related)

(Obs.) Being in the way

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biting

Cutting or incisive.

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sinewed

Furnished with sinews.

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unmistakable

Unique, such that it cannot be mistaken for something else.

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stable

Relating to a chemical compound that does not easily decompose or change into other compounds. Water is an example of a stable compound.

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sure

Having or showing no doubt; positive; confident

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high

Having a pitch corresponding to a relatively large number of sound-wave cycles per second:

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profound

Descending far below the surface; opening or reaching to great depth; deep.

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concentrated

Intense; directed towards a specific location.

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intoxicative

Containing alcohol

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continue (related)

Not easily moved or shaken

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substantial

Not seeming or imaginary; not illusive; real; solid; true; veritable.

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inviolable

The definition of inviolable is something that has to be kept sacred, or that is unable to be broken or dishonored.

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unattackable

Which may not be attacked

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well-develop (related)

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sagacious

The definition of sagacious is someone with sound judgment.

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clear-headed

Alternative spelling of clearheaded.

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adept

The definition of adept is someone who is very good at a particular skill or activity.

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important

Having relevant and crucial value.

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impregnable

Capable of being impregnated.

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valid

Well grounded; just:

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uncaring (antonym)

Devoid of concern or sympathy.

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puissant

Powerful, mighty, having authority.

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dynamical

Dynamic

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unshakable

Having no errors or loopholes; unassailable.

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stiff

Potent or strong:

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ingestion (related)

Containing alcohol

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burly

The definition of burly is big, strong and rough.

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strapping

Of a person of either sex; Having a sturdy muscular physique; robust.

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well-built

Muscular and lean, having a body resembling that of an athlete

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stimulating

Having a manner that stimulates.

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faint (antonym)

Likely to fall into a faint; dizzy and weak:

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feeble (antonym)

Weak; not strong

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lusty

Strong, healthy and vigorous.

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heavy-set

Alternative spelling of heavyset.

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hard-as-nails

(Simile, colloquial) Very hard; tough

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surface (related)

Relating to or occurring on or near the surface of the earth.

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able

Free from constraints preventing completion of task; permitted to; not prevented from. [First attested from around 1350 to 1470).]

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perceptive

Of or relating to perception:

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spiked

Having spikes.

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marked

Having one or more distinguishing marks.

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proficient

Highly competent; skilled; adept

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skilled

Requiring specialized ability or training:

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emaciated (antonym)

Thin or haggard, especially from hunger or disease.

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unstable (antonym)

Liable to undergo spontaneous decay into some other form. For example, the nucleus of uranium 238 atom is unstable and changes by radioactive decay into the nucleus of thorium 234, a lighter element. Many subatomic particles, such as muons and neutrons, are unstable and decay quickly into other particles.

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