serviceable Antonyms

unserviceable gone kaput unusable inoperable unworkable nonsurgical nonproductive nonoperational dysfunctional nonconductive nonfunctional malfunctioning busted nonlinear dud knackered broken-down on the blink on the fritz out of commission not in working order not functioning gone phut gone haywire conked out acting up as useful as a chocolate teapot not working not good unrepaired unreachable out of whack out of service out of order out of gear kaput jiggered impracticable harmful functionless fruitless flaky faulty effectless down deficient defective cumbrous crocked bust