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Definitions

unsure

[uhn-shoor, ‐shur] / ʌnˈʃʊər, ‐ʃɜr /
ADJECTIVE
doubtful, insecure
Synonyms
STRONGEST
distrustful dubious hesitant indecisive mistrustful shaky skeptical suspicious uncertain unclear unconvinced undecided
WEAK
betwixt and between borderline fluctuant fly-by-night iffy in a quandary indeterminate irresolute lacking open problematic rootless touch and go unassured unconfident undependable unreliable unstable untrustworthy untrusty up for grabs vacillating wavering weak wimpy wobbly
Antonyms
STRONGEST
believing certain clear definite determined indubious sure trustworthy trusty undoubted unwavering
WEAK
secure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Roxanne knew her polling location, but she was still unsure whether she would vote at all.

From Salon • Apr. 19, 2026

Chloe is unsure if simply banning junk food advertising will solve the problem, blaming "poverty and lack of accessible healthy options" in the area.

From BBC • Apr. 18, 2026

However, Arcuri said in his Monday note that now he is unsure about Intel’s longer-term earnings power even if it did buy back its stake from Brookfield.

From MarketWatch • Apr. 13, 2026

Union representatives say mixed messaging has left employees unsure whether they can rely on upcoming paychecks.

From Barron's • Apr. 10, 2026

Weak players were clumsy and unsure; strong players were confident and graceful.

From "Endgame" by Frank Brady

Vocabulary lists containing unsure

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