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

Another 43% do not, and 21% are unsure, highlighting deep uncertainty as the country hurtles toward the 2026 midterm elections in November. —Kathryn Palmer, USA Today, 23 Apr. 2026

Looking unsure and a bit lost, VIPs from the Institute of Contemporary Art in Miami straggle into the dim underground garage of a nondescript Little Havana strip mall on a recent Saturday morning. —Carl Juste, Miami Herald, 22 Apr. 2026

The rest were unsure or reckoned the two would cancel each other out. —Rob Crilly, The Washington Examiner, 22 Apr. 2026

This is what a supply shortage looks like in practice — not just higher prices, but households stuck in between, unsure which path to pursue. —The Editorial Board, Chicago Tribune, 21 Apr. 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