Sure synonyms

certain (related)

Named but not known or previously mentioned:

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7

absolutely

Yes

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indisputable

Not disputable; not open to question; obviously true

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5

of-course

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surely (related)

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unfailing

Never ceasing or falling short; inexhaustible

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fast

Disposed to dissipation; wild:

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assured

Assured is defined as something that is definite.

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2

positive

Explicitly or openly expressed or laid down:

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indubitable

The definition of indubitable is something that is true without question or that is absolutely true beyond doubt.

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authentic

(Law) Executed in a manner so as to produce legal effectiveness:

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wobbly (antonym)

Inclined to wobble; shaky

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1

unshakable

Having no errors or loopholes; unassailable.

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undoubting

(Of persons, states of mind, beliefs, etc.) Experiencing or harboring no doubts; entirely confident.

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strong (related)

Persuasive, effective, and cogent:

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trusted

(of persons) worthy of trust or confidence

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sure-enough

definitely or positively (`sure' is sometimes used informally for `surely')

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sure as shooting

definitely or positively (`sure' is sometimes used informally for `surely')

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positively

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2

but definitely

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convinced

In a state of believing, especially from evidence but not necessarily.

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unavoidable

That cannot be avoided; inevitable

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abiding

Continuing or persisting in the same state; lasting; enduring. [First attested around 1350 to 1470.]

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definite

Readily distinguished or certain:

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dependable

Trustworthy.

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enduring

Lasting; permanent; durable

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ineluctable

Not to be avoided or escaped; inevitable:

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inerrable

Not erring; infallible

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reliable

That can be relied on; dependable; trustworthy

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rue

Designating a family (Rutaceae, order Sapindales) of woody dicotyledonous plants, including the gas plant and the citrus plants

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sureness

(Countable, rare) The result or product of being sure.

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dubious (antonym)

Of questionable character:

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substantial

Having good substance; strong; stout; solid; firm; as, substantial cloth; a substantial fence or wall.

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2

for-sure

definitely or positively (`sure' is sometimes used informally for `surely')

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2

by-all-means

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true (related)

(Logic) Of the state in Boolean logic that indicates an affirmative or positive result.

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indefinite (antonym)

Uncertain; undecided:

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0

unsure (antonym)

Precarious; unstable; unreliable.

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0

wavering (antonym)

Fluctuating; being in doubt; undetermined; indecisive; uncertain; unsteady.

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0

variable (antonym)

(Math.) Having no fixed value

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0

doubted (antonym)

self-confident

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0

secure

Firm and not likely to fail; stable.

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0

continue (related)

Firmly settled or positioned

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0

for-certain

definitely or positively (`sure' is sometimes used informally for `surely')

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0

aware (related)

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glad (related)

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remember (related)

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just-about (related)

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0

make-sure (related)

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0

certainly

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1

infallible

Incapable of failing; certain:

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1

unquestionable

With no exception or qualification; unexceptionable

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inescapable

That cannot be escaped or avoided; inevitable

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sure-fire

Bound to be successful or perform as expected:

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solid

Firm, strong, and dependable

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sound

Secure or stable:

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sturdy

Of firm build; stiff; stout; strong.

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guess (related)

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think (related)

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inevitable (related)

The definition of inevitable is something that is certain to happen.

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sanguine

Anticipating the best; optimistic; not despondent; confident; full of hope.

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steadfast

Firmly loyal or constant; unswerving.

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trustworthy

Worthy of trust; dependable; reliable

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undoubted

Not doubted, called in question, or disputed; certain

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certainty

Inevitability:

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indubitability

The quality or state of being indubitable.

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inevitability

(Countable) An inevitable condition or outcome.

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incontrovertible

Impossible to dispute; unquestionable:

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irrefutable

That cannot be refuted or disproved

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firm

Marked by or indicating the tone and resiliency of healthy tissue:

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unassailable

Not subject to attack or seizure; impregnable:

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confident

Assured; certain

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unerring

Free from error

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doubtful (antonym)

Experiencing or showing doubt, sceptical

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uncertain (antonym)

Subject to change; variable:

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swerving (antonym)

physically stable

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unconfident (antonym)

Not confident.

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unself-confident (antonym)

self-confident

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unsteady (antonym)

Not held firmly in position, physically unstable.

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humbled (antonym)

Feeling the positive effects of humility.

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undeniable

That cannot be denied; indisputable

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undisputable

Common misspelling of indisputable.

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afraid (related)

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know (related)

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suppose (related)

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stable

Not easily moved or thrown off balance; firm; steady

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unfaltering

Without faltering, continuous, steadfast.

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ineluctability

The state or condition of being ineluctable.

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happy (related)

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hope (related)

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safe

Free from danger or injury; undamaged or unhurt:

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steady

Direct and unfaltering; sure.

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inarguable

Not arguable.

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incontestable

Not to be contested; indisputable; unquestionable

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hard

Lacking in shade; undiminished:

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Part of speech:

Sure synonyms

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Sure Sentence Examples

Words that mention sure in the Dictionary

Words near sure in the Thesaurus