unsure

adjective

un·​sure ˌən-ˈshu̇r 

-ˈshər

especially Southern -ˈshȯr

: 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

• skeptical
• suspicious
• uncertain
• doubtful

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

Still, a $50,000 5-year CD won't be the best idea for most savers, especially those unsure of their capacity to keep the funds frozen in the account for the full term. — Matt Richardson, CBS News, 17 Sep. 2026

The effect created the illusion of two ships, leaving the enemy unsure which one to target. — Georgina Jedikovska, Interesting Engineering, 16 Sep. 2026

Frida, which released a New York Times ad explaining the motive behind the fake product, shares that people were unsure whether the brand was real or not. — Anna Halkidis, Parents, 15 Sep. 2026

Still unsure whether the order was actually from Bindi, Mason checked the shipping information. — Jordan Greene, PEOPLE, 15 Sep. 2026

Word History

First Known Use

15th century, in the meaning defined above

Phrases Containing unsure

• unsure of oneself

Rhymes for unsure

• abjure
• adjure
• allure
• assure
• brochure
• cocksure
• coiffure
• contour
• couture
• demure
• detour
• endure