unsure

adjective

un·​sure ˌən-ˈshu̇r How to pronounce unsure (audio)
-ˈshər
especially Southern -ˈshȯr
Synonyms of unsurenext
: not marked by or given to feelings of confident certainty : not sure
was unsure of what to do
see also:
unsure of oneself

Synonyms of unsure

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Examples of unsure in a Sentence

unsure of her ability to handle the pressure of competing in the Olympic Games
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Of course, many people are unsure of where AI is headed and how to make the best use of it. — William Arruda, Forbes.com, 5 July 2026 Franchises are unsure about the future of their investments and facilities, with no clear plan in place. — Joel Feder, The Drive, 1 July 2026 Allegheny County is facing a major financial crisis that leaders are unsure how to address. — Andy Sheehan, CBS News, 1 July 2026 That culminated in their goal, when England seemed unsure of DR Congo’s shape and who was supposed to be picking up Cipenga at the far post. — Michael Cox, New York Times, 1 July 2026 See All Example Sentences for unsure

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of unsure was in the 15th century

Phrases Containing unsure

Rhymes for unsure

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Browse Nearby Words

unsuppressed
unsure
unsureness
See all Nearby Words

Cite this Entry

“Unsure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsure. Accessed 7 Jul. 2026.

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More from Merriam-Webster on unsure

Nglish: Translation of unsure for Spanish Speakers

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