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.
The humiliation and fear leave many victims feeling alone and unsure of where to go. — Dana O’Neil, CNN Money, 10 Aug. 2026 Rebecca seems nervous, on edge, unsure how to communicate with him. — Deborah Treisman, New Yorker, 9 Aug. 2026 Royals starter Seth Lugo was unsure if Witt could get to the baseball. — Jaylon Thompson, Kansas City Star, 9 Aug. 2026 When employees are unsure whether a communication is genuinely human or synthetically generated, skepticism naturally rises. — Kent Ingle, Forbes.com, 7 Aug. 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 11 Aug. 2026.

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More from Merriam-Webster on unsure

Nglish: Translation of unsure for Spanish Speakers

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