rip-roaring Antonyms

not busy tiring tedious slack repetitive repetitious quiet ponderous pedestrian peaceful tiresome vanilla wearisome unexciting nonoperating plain vanilla mind-numbing uninspiring colourless uneventful uninteresting wearying passionless ordinary flat DRY dreary drab depressed dead commonplace boring bland humdrum idle impassive monotonous lifeless leaden lazy lacklustre jejune insipid inoperative inactive banal