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Definitions

certainty

[sur-tn-tee] / ˈsɜr tn ti /
NOUN
positive assurance
Synonyms
STRONGEST
confidence inevitability trust
STRONG
belief certitude cinch conviction credence definiteness dogmatism faith firmness lock positiveness positivism setup shoo-in staunchness steadiness stock sureness surety validity
WEAK
all sewn up authoritativeness indubitableness open and shut case rain or shine sure bet sure thing wrap-up
Antonyms
STRONGEST
distrust
STRONG
disbelief
WEAK
ambiguity doubt hesitation idea questionableness theory uncertainty
NOUN
fact, resulting truth
Synonyms
STRONGEST
foregone conclusion reality
STRONG
consequence surety
WEAK
inevitable result sure thing
Antonyms
WEAK
ambiguity concept doubt hesitation idea questionableness theory

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Smaller carriers are often paid at a flat rate and have no certainty about whether they will recover the higher fuel costs.

From Los Angeles Times • Apr. 9, 2026

It wasn’t long ago that counting on a mega cap tech stock to rise was a pretty safe bet, but that certainty has been turned on its head this year.

From Barron's • Apr. 4, 2026

It is not possible to conclude "with certainty" that the wrong donor was used, she says.

From BBC • Mar. 31, 2026

“The WBD Board has been guided by the singular principle of securing a transaction that maximizes the value of our iconic assets and delivers as much certainty as possible to our shareholders,” Warner Bros.

From MarketWatch • Mar. 26, 2026

“It’s called Spiritoso,” I tell her with certainty.

From "Blended" by Sharon M. Draper

Vocabulary lists containing certainty

Spelling Practice 2, Unit 2

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