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be certain of

VERB

believe

Synonyms

STRONGEST

accept admit conclude consider have hold regard suppose think trust understand

STRONG

accredit affirm buy conceive credit deem posit postulate presuppose swallow

WEAK

attach weight to be convinced of be credulous be of the opinion count on fall for give credence to have faith in have no doubt keep the faith lap up place confidence in presume true reckon on rest assured swear by take as gospel take at one's word take for granted take it

Antonyms

STRONGEST

abandon deny disbelieve discard dismiss dispute disregard exclude forget ignore neglect refuse reject

WEAK

distrust

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.

United need one point from their final two matches to be certain of a third-place finish.

From BBC • May 15, 2026

With their title hopes in tatters, Liverpool can't be certain of reaching the Champions League last 16 either after a second defeat in five games in the tournament.

From Barron's • Nov. 26, 2025

As to what the courts do, I would like to think they would block it, but again, I can’t be certain of that.

From Slate • Mar. 29, 2025

City needs to win its final game of the season to be certain of winning the title ahead of second-place Arsenal.

From Seattle Times • May 19, 2024

Then, in a resolutely cheerful voice, “Anyhow,” he concluded, “there’s one thing we can be certain of; whoever he may have been, he was happy when he was alive. Everybody’s happy now.”

From "Brave New World" by Aldous Huxley

be certain of

Example Sentences

Related Words