unflagging Antonyms

asleep on the job slothful sleepyhead sleepful slack shiftless passive otiose negligent neglectful listless lethargic lazy languorous slow sluggish slumbery unindustrious unenthusiastic unenergetic work-shy unawakened wavering variable unready unconcerned torpid supine somnific snoring languid laggard drowsy drony dronish do-nothing dispassionate disinterested dilatory dallying comatose changing casual careless capricious enervated faineant flagging lagging lackadaisical