Synonyms for (adjective) arduous

Synonyms: arduous

Definition: difficult to accomplish; demanding considerable mental effort and skill

Usage: the arduous work of preparing a dictionary

Similar words: difficult, hard

Definition: not easy; requiring great physical or mental effort to accomplish or comprehend or endure

Usage: a difficult task; nesting places on the cliffs are difficult of access; difficult times; why is it so hard for you to keep a secret?


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


Synonyms: arduous, straining, strenuous

Definition: taxing to the utmost; testing powers of endurance

Usage: his final, straining burst of speed; a strenuous task; your willingness after these six arduous days to remain here- F.D.Roosevelt

Similar words: effortful

Definition: requiring great physical effort