unsure

adjective

un·​sure ˌən-ˈshu̇r How to pronounce unsure (audio)
-ˈshər
especially Southern -ˈshȯr
: not marked by or given to feelings of confident certainty : not sure
was unsure of what to do
Phrases
unsure of oneself
: lacking confidence in one's abilities
… he's a little unsure of himself when it comes to the music world …Seth Mnookin

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.
Although a partial recovery brought the net loss to roughly 25%, significant volatility continues, leaving investors unsure whether the bottom has truly fallen out. João Marinotti, The Conversation, 21 Nov. 2025 The young couple and Miguel Martinez’s own family endured days unsure of where Miguel was. Charlotte Observer, 21 Nov. 2025 Initially, doctors were unsure if the girl would survive. Charna Flam, PEOPLE, 21 Nov. 2025 Police were unsure how long the van had been submerged. Adam Thompson, CBS News, 19 Nov. 2025 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 25 Nov. 2025.

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