Involving or requiring strenuous effort; difficult and tiring,
Involving or requiring strenuous effort; difficult and tiring
an arduous journey
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"
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
difficult to accomplish; demanding considerable mental effort and skill; "the arduous work of preparing a dictionary"
(arduously) in an arduous manner; "they worked arduously"
(arduousness) extreme effortfulness
Scinax arduous is a species of frog in the Hylidae family. It is endemic to Brazil. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Needing or using up much energy; testing powers of endurance; this sense) Difficult or exhausting to traverse
difficult or demanding
Involving or requiring strenuous effort; difficult and tiring. “Pine trees flanked the road, fewer than I remembered and many of them bare, but it was good to see trees again after the arduous drive through the Khyber Pass” (233).