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

The couple, unsure what to do after finding a stash of coins this big, eventually got in touch with Kagin’s, a company that evaluates and helps sell rare coins that is also McCarthy’s employer. —Justin Pot, Popular Science, 24 Dec. 2025

Velez, still unsure who the man was who forced her into an SUV, managed to open the door and run to an LAPD officer, begging for help. —Anita Chabria, Mercury News, 23 Dec. 2025

While Western buyers and brands have been unsure about whether to continue sourcing from Myanmar in the past years, and many global players have pulled out, much of the business appetite has been coming from China. —Mayu Saini, Sourcing Journal, 22 Dec. 2025

At her field hospital in Deir al-Balah, Tampellini recalls trying to ration the most basic of medical supplies, unsure when more would arrive. —Callum Sutherland, Time, 22 Dec. 2025

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for unsure

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