punishing Synonyms

laborious toilsome operose backbreaking grueling gruelling heavy hard arduous rugged revenging sentencing retributory ponderous retaliative punitory punitive punishment punisher punish punished profound severe smiter punishingly back-breaking unbearable penalization penalise weighty wearisome wearing uphill trying tough tiring tight taxing swingeing strenuous penalizing penological penalty disciplining disciplinary difficult demanding debilitating cruel correctional