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

Giblin is unsure what will happen to the pavilion when the church takes over. — Charlotte Observer, 13 July 2026

Both playing with the same goal in mind, still unsure if there will be a Heat future for one, both or neither, after the two finished this past season on the Heat roster, Keels on a two-way deal, Young on a standard contract. — Ira Winderman, Sun Sentinel, 12 July 2026

The three wandered downtown Culver City, seemingly unsure of where to go. — Matthew Ormseth, Los Angeles Times, 11 July 2026

These passes rarely work out, with team-mates often appearing unsure as to what Baleba intended. — Carl Anka, New York Times, 9 July 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