Definitions of arduous:
- adjective: difficult to accomplish; demanding considerable mental effort and skill
Example: "The arduous work of preparing a dictionary"
- adjective: characterized by toilsome effort to the point of exhaustion; especially physical effort
Example: "Worked their arduous way up the mining valley"
- adjective: taxing to the utmost; testing powers of endurance
Example: "Your willingness after these six arduous days to remain here- F.D.Roosevelt"
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