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:

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 moans announced the doubt throughout Riviera’s 18th green amphitheater, a bowl full of thousands of fans unsure if the new guy could do it. Brody Miller, New York Times, 23 Feb. 2026 Even those in Winthrop are unsure where all the snow will go. Paul Burton, CBS News, 21 Feb. 2026 Those who are not immunized or are unsure of their status should monitor themselves closely for signs of infection. Andrew J. Campa, Los Angeles Times, 19 Feb. 2026 But that was with an aluminum bat, and with a line-drive swing, scouts were unsure if his power would translate to the pros. Abbey Mastracco, New York Daily News, 19 Feb. 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

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Cite this Entry

“Unsure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsure. Accessed 26 Feb. 2026.

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