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

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.
Louize Yafai, an emotional recovery and resilience coach based in London, told me that many people are unsure of their own worth. Meehika Barua, Time, 3 Feb. 2026 The 22-year-old was unsure of moving to MLS, where Charlotte FC — managed by former Villa boss Dean Smith — expressed interest. Jacob Tanswell, New York Times, 3 Feb. 2026 On these blocks, darkened by the presence of heavily armed federal agents, Minnesotans describe routine movements as calculated risks, unsure which block might erupt into confrontation. Alaa Elassar, CNN Money, 2 Feb. 2026 When taxpayers are unsure how filing rules work or whether a message is legitimate, criminals step in with communications designed to sound official and helpful. Kurt Knutsson, FOXNews.com, 1 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 5 Feb. 2026.

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