operative Antonyms

inoperative not helpful unusable inoperable nonsurgical nonproductive nonoperational dysfunctional nonfunctional malfunctioning busted nonlinear knackered broken-down kaput on the blink on the fritz gone kaput not in working order not functioning gone phut gone haywire conked out acting up not working unserviceable unrepaired out of whack out of service out of order out of commission jiggered atonalism flaky faulty fallow effectless down dormant defunct defective dead crocked bust broken asleep idle impracticable inactive wonky