Sure synonyms | Best 95 synonyms for sure

certain (related)

Named but not known or previously mentioned:

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7

absolutely

Yes

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7

indisputable

Not disputable; not open to question; obviously true

15

6

of-course

12

5

surely (related)

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5

assured

Assured is defined as something that is definite.

7

2

undoubting

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

4

1

indefinite (antonym)

Uncertain; undecided:

3

0

wavering (antonym)

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

3

0

remember (related)

3

0

positive

Explicitly or openly expressed or laid down:

6

4

indubitable

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

4

2

wobbly (antonym)

Inclined to wobble; shaky

3

1

sound

Secure or stable:

3

1

unshakable

Having no errors or loopholes; unassailable.

3

1

strong (related)

Persuasive, effective, and cogent:

3

1

trusted

(of persons) worthy of trust or confidence

3

1

sure-enough

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

3

1

sure as shooting

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

3

1

unsure (antonym)

Precarious; unstable; unreliable.

2

0

doubted (antonym)

self-confident

2

0

secure

Firm and not likely to fail; stable.

2

0

continue (related)

Firmly settled or positioned

2

0

for-certain

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

2

0

aware (related)

2

0

glad (related)

2

0

just-about (related)

2

0

make-sure (related)

2

0

authentic

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

4

3

positively

3

2

but definitely

3

2

convinced

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

3

2

unavoidable

That cannot be avoided; inevitable

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2

abiding

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

3

2

definite

Readily distinguished or certain:

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2

dependable

Trustworthy.

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2

enduring

Lasting; permanent; durable

3

2

ineluctable

Not to be avoided or escaped; inevitable:

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2

inerrable

Not erring; infallible

3

2

reliable

That can be relied on; dependable; trustworthy

3

2

rue

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

3

2

steadfast

Firmly loyal or constant; unswerving.

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2

sureness

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

3

2

dubious (antonym)

Of questionable character:

3

2

substantial

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

3

2

for-sure

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

3

2

certainly

2

1

infallible

Incapable of failing; certain:

2

1

variable (antonym)

(Math.) Having no fixed value

2

1

unquestionable

With no exception or qualification; unexceptionable

2

1

inescapable

That cannot be escaped or avoided; inevitable

2

1

sure-fire

Bound to be successful or perform as expected:

2

1

solid

Firm, strong, and dependable

2

1

sturdy

Of firm build; stiff; stout; strong.

2

1

guess (related)

2

1

think (related)

2

1

trustworthy

Worthy of trust; dependable; reliable

2

undoubted

Not doubted, called in question, or disputed; certain

2

certainty

Inevitability:

2

indubitability

The quality or state of being indubitable.

2

inevitability

(Countable) An inevitable condition or outcome.

2

incontrovertible

Impossible to dispute; unquestionable:

2

irrefutable

That cannot be refuted or disproved

2

unfailing

Never ceasing or falling short; inexhaustible

1

confident

Assured; certain

1

unerring

Free from error

1

doubtful (antonym)

Experiencing or showing doubt, sceptical

1

swerving (antonym)

physically stable

1

unconfident (antonym)

Not confident.

1

unself-confident (antonym)

self-confident

1

unsteady (antonym)

Not held firmly in position, physically unstable.

1

humbled (antonym)

Feeling the positive effects of humility.

1

undeniable

That cannot be denied; indisputable

1

undisputable

Common misspelling of indisputable.

1

afraid (related)

1

know (related)

1

suppose (related)

1

inevitable

Impossible to avoid or prevent; certain to happen.

0

uncertain (antonym)

Subject to change; variable:

0

firm

Constant; steadfast:

0

by-all-means

3

4

true (related)

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

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4

sanguine

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

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3

unassailable

Not subject to attack or seizure; impregnable:

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3

stable

Not easily moved or thrown off balance; firm; steady

1

2

unfaltering

Without faltering, continuous, steadfast.

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2

ineluctability

The state or condition of being ineluctable.

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2

happy (related)

1

2

hope (related)

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2

fast

Disposed to dissipation; wild:

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11

safe

Free from danger or injury; undamaged or unhurt:

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3

steady

Direct and unfaltering; sure.

1

3

inarguable

Not arguable.

1

3

incontestable

Not to be contested; indisputable; unquestionable

1

3

hard

Lacking in shade; undiminished:

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4

Sure synonyms and antonyms

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Sure synonyms and antonyms

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