Synonyms of laborious
- 1. arduous, backbreaking, grueling, gruelling, hard, heavy, laborious, operose, punishing, toilsome, effortful (vs. effortless)
- usage: characterized by effort to the point of exhaustion; especially physical effort; "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"
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Definition and meaning of laborious (Dictionary)