arduous

arduous has 5 senses in the JumbleFix dictionary. Letters: 7.

Definitions

• a.. Steep and lofty, in a literal sense; hard to climb.
• a.. Attended with great labor, like the ascending of acclivities; difficult; laborious; as, an arduous employment, task, or enterprise.
• a.. difficult to accomplish; demanding considerable mental effort and skill; "the arduous work of preparing a dictionary"
• a.. 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"
• a.. taxing to the utmost; testing powers of endurance; "his final, straining burst of speed"; "a strenuous task"; "your willingness after these six arduous days to remain here"- F.D.Roosevelt