certainty
Americannoun
plural
certainties-
the state of being certain.
- Synonyms:
- confidence, assurance, certitude
-
something certain; an assured fact.
- Synonyms:
- truth
idioms
noun
-
the condition of being certain
-
something established as certain or inevitable
-
without doubt
Related Words
See belief.
Other Word Forms
- noncertainty noun
Etymology
Origin of certainty
1250–1300; Middle English certeinte < Anglo-French, equivalent to certein certain + -te -ty 2
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.
The only certainty is that this problem is a thorny one, and there is plenty of ground to cover over the next few weeks.
From BBC • Apr. 3, 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
The company said the transaction would provide immediate liquidity and certainty of value for shareholders, while also positioning Boralex for its next phase of growth.
From The Wall Street Journal • Mar. 25, 2026
The announced changes have been welcomed by the energy industry and those working in green technology for providing certainty that heat pumps and solar panels are worth investing in.
From BBC • Mar. 23, 2026
I wanted to ask for further explanation, but something stopped me—the certainty that to do so would be to shout to the room that I didn’t belong there.
From "Educated" by Tara Westover
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
