workable Antonyms

unworkable as useful as tits on a bull unserviceable unfeasible out of whack out of service out of order out of commission on the fritz on the blink nonworkable unsustainable non-working as dead as mutton about as useful as a chocolate teapot gone kaput not in working order not functioning gone phut gone haywire conked out acting up absolutely impossible not working non-workable unusable non-functional impractical impracticable impossible idle faulty down dormant defective bust bullheaded inactive inoperative buggered behind the curve dysfunctional malfunctioning knackered broken-down kaput jiggered wonky shot broken