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Definition of unproven
unproven
/ˌʌnˈpruːvən/
un · prov · en
unproven Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
3
unproven Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Not demonstrated, verified, or shown to be true by evidence or argument.
Example
"The researchers cautioned against relying on unproven medical remedies that lack clinical trials."
2
Not yet tested or having not yet demonstrated competence, effectiveness, or reliability in practice.
Example
"The coach took a gamble by starting an unproven rookie quarterback in the championship game."
Synonyms
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View all antonyms for unproven• Rhymes for unproven
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Word Origin & Etymology
Formed in Middle English from the prefix 'un-' ('not') and 'proven', an older past participle of 'prove' (from Old French 'prover' and Latin 'probare', meaning 'to test or demonstrate').
Cite this Entry
Wordmom. (2026). Definition of Unproven. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unproven