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.
For the first ten minutes, the audience seems a little unsure where any of this is going — something Lyons is self-aware enough to address. — Rebecca Rosman, NPR, 31 Aug. 2026 One bathroom had no toilet seat and there was no lighting in a stairwell used by elders unsure of their footing. — Carol Marbin Miller, Miami Herald, 27 Aug. 2026 But in that time, the percentage who believe at least some UFOs are alien spacecraft (37%) hasn’t risen much; more Americans have just become unsure. — Morgan Chalfant, semafor.com, 26 Aug. 2026 Victims’ families and experts are unsure the higher amounts will be enough to get tipsters to come forward, citing people's fears and distrust of the federal government. — ABC News, 25 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 1 Sep. 2026.

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Last Updated: - Updated example sentences
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