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Definition of unsure
unsure
/ʌnˈʃʊr/
un · sure
Adverb:unsurely
unsure Lexical Profile
CEFR
B1
Grade
3
Tier
1
Usage
Top 5k
Syllables
2
unsure Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Not feeling, showing, or done with confidence and certainty; hesitant or doubtful about a fact, decision, or course of action.
Example
"Many students remain unsure about which career path to pursue after graduation."
2
Not fixed, steady, or reliable; liable to fail, change, or give way.
Example
"The toddler took a few unsure steps across the living room rug before sitting down."
Synonyms
View all synonyms for unsure Antonyms
View all antonyms for unsure• Rhymes for unsure
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Word Origin & Etymology
Attested from the late 14th century in Middle English, formed from the native negative prefix 'un-' and 'sure', which entered English via Old French 'sur' from Latin 'securus' ('free from care').
Cite this Entry
Wordmom. (2026). Definition of Unsure. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unsure