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arduous

adjective

1 arduous

Characterized by effort to the point of exhaustion; especially physical effort:
— Worked their arduous way up the mining valley.

synonyms: backbreaking, grueling, gruelling, hard, heavy, laborious, operose, punishing, toilsome.

Roget 704: difficult, not easy, hard, tough; troublesome, toilsome, irksome; operose, laborious, onerous, arduous, Herculean, formidable; sooner said than done; ... show more

Polish: morderczy, katorżniczy

2 arduous

Taxing to the utmost; testing powers of endurance:
— Your willingness after these six arduous days to remain here.

synonyms: straining, strenuous.

3 arduous

Difficult to accomplish; demanding considerable mental effort and skill.

Polish: mozolny, żmudny


Moby thesaurus: Herculean, abrupt, abstruse, backbreaking, brutal, burdensome, complex, critical, crushing, delicate, demanding, difficile, difficult, effortful, energetic, exacting, exhausting, fatiguing, forced, formidable ... show more.

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