Thesaurus.com
Dictionary.com

have no doubt

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 certain of be convinced of be credulous be of the opinion count on fall for give credence to have faith in 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.

I have no doubt that my listening experience was enhanced by having read “Nocturnes.”

From The Wall Street Journal • Apr. 29, 2026

I have no doubt in my mind about that.

From Barron's • Mar. 28, 2026

This moment would have no doubt led to a very memorable standing ovation and “U-S-A” chant and perhaps even a few tears.

From Los Angeles Times • Mar. 14, 2026

There have no doubt been some efficiencies, but there are no massive savings.

From MarketWatch • Feb. 24, 2026

I could have no doubt: the young man was after Bear, not me.

From "Crispin: The Cross of Lead" by Avi