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

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

Synonyms

• distrustful
• doubtful
• dubious
• hinky [slang]
• mistrustful
• skeptical
• suspicious
• trustless
• uncertain
• unconvinced
• undecided
• unsettled

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

Take Casper’s mattress quiz prior to purchase if unsure of the perfect mattress for you. —Paris Wilson, Condé Nast Traveler, 29 Nov. 2024

What to Look for When Buying Delta-8 Products Thinking about purchasing Delta-8 THC, but unsure where to start? —Amplified Content Studio, The Mercury News, 26 Nov. 2024

But my other pigeon, Bertie, is very unsure what to think of the cat so far. —Tom Rogers, Newsweek, 26 Nov. 2024

Politicians today seem unsure whether life begins at conception or at eighty. —Daniel Immerwahr, The New Yorker, 25 Nov. 2024

Word History

First Known Use

15th century, in the meaning defined above