studious Antonyms

asleep on the job perfunctory passive otiose offhand negligent neglectful loafing listless lifeless lethargic leisurely lazy plodding rash remiss most stupid unscholarly unstudious dumb as a box of rocks unenergetic work-shy directionless unready supine sluggish slothful shiftless lax languorous flagging feeble-minded faineant enervated drowsy drony do-nothing dilatory dallying comatose careless apathetic heavy idle ignorant languid laggard lagging lackadaisical inert