Synonyms for (adjective) punishing

Synonyms: heavy, grueling, gruelling, hard, laborious, backbreaking, arduous, toilsome, operose, punishing

Definition: characterized by effort to the point of exhaustion; especially physical effort

Usage: worked their arduous way up the mining valley; a grueling campaign; hard labor; heavy work; heavy going; spent many laborious hours on the project; set a punishing pace

Similar words: effortful

Definition: requiring great physical effort