inoperative

Definitions of inoperative
  1. adjective
    not working or taking effect
    “an inoperative law”
    Synonyms:
    down
    not functioning (temporarily or permanently)
    dead
    out of use or operation because of a fault or breakdown
    defunct
    no longer in force or use; inactive
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    Antonyms:
    operative
    being in force or having or exerting force
    operant
    having influence or producing an effect
    effective, good, in effect, in force
    exerting force or influence
    in operation, operating, operational
    being in effect or operation
    working
    serving to permit or facilitate further work or activity
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