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 poll found that 44% of those surveyed prefer Republican control of Congress, while 7% of participants remain unsure. —Jay Stahl, USA Today, 14 June 2026

Tragicomedy plays games, producing a viewer who is unsure how to react. —Eugenie Brinkema, ARTnews.com, 14 June 2026

Analysts said the delay in starting the Hungary plant might be because BYD is unsure of the outcome of the EU’s local content requirement proposal. —Neil Winton, Forbes.com, 14 June 2026

Why Perimenopause Is So Often Misidentified A December 2025 preprint in medRxiv examining perimenopause uncertainty among more than 7,600 US women found that one in three were unsure of their reproductive stage, with barriers to clinical confirmation among the key drivers. —Allison Palmer updated June 13, Sacbee.com, 13 June 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