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 titular gang comprises Mac (McElhenney), a closeted wannabe tough guy; the narcissistic prepster Dennis (Glenn Howerton); Dennis’s chronically unsure fraternal twin, Dee (Kaitlin Olson); and the bar’s buffoonish janitor, Charlie (Charlie Day). — Paula Mejía, New Yorker, 17 Aug. 2026 Still, stakeholders are unsure what effects a veto override will have. — Laura Horne, Charlotte Observer, 17 Aug. 2026 However, 36 percent said their needs were rarely or never considered, or were unsure if they had been considered. — Maryanne Murray Buechner, Forbes.com, 17 Aug. 2026 Those of us who received more than others were embarrassed and unsure what to do. — R. Eric Thomas, Mercury News, 17 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 18 Aug. 2026.

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More from Merriam-Webster on unsure

Nglish: Translation of unsure for Spanish Speakers

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