indefatigable Antonyms

very tired unready unconcerned torpid tired spent somnific snoring slumbrous sluggish slothful sleepyhead sleepy sleepful shiftless passive wappened wayworn fit to drop extremely tired awfully tired more dead than alive unenthusiastic on one's last legs zonked done in cagy burned-out work-shy wiped out all in wheezing weary panting negligent flagging fatigued fagged exhausted enervated drowsy drony dog-weary dilatory debilitated dead beat comatose careless bushed beat