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Definition of inoperative
inoperative
/ɪnˈɑː.pɚ.ə.tɪv/
in · op · er · a · tive
Adverb:inoperatively
inoperative Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
5
inoperative Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Not working or functioning; out of order.
Example
"The main elevator remained inoperative for several days while technicians waited for a replacement motor."
2
Having no legal force, validity, or practical effect (especially of a law, rule, contract, or official statement).
Example
"The court ruled that the outdated clause in the lease agreement was legally inoperative."
Synonyms
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Word Origin & Etymology
First recorded in the early 17th century, formed in English from the negative prefix in- ('not') and operative, ultimately deriving from Latin operari ('to work, labor').
Cite this Entry
Wordmom. (2026). Definition of Inoperative. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/inoperative