adj. 25B6; adjective
the fan is inoperative : OUT OF ORDER, out of service, broken, out of commission, unserviceable, faulty, defective; down; informal bust, kaput, on the blink, acting up, shot; Brit. informal knackered.
the contract is inoperative : VOID, null and void, invalid, ineffective, non-viable; cancelled, revoked, terminated; worthless, valueless, unproductive, abortive.
working, valid.