Synonyms for arduous
Similarity of adj arduous
3 senses of arduous
Sense 1:
arduous, backbreaking, grueling, gruelling, hard, heavy, laborious, operose, punishing, toilsomeeffortful (vs. effortless)
Sense 2:
arduous, straining, strenuouseffortful (vs. effortless)
Sense 3:
arduousdifficult (vs. easy), hard
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