studious Antonyms

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