1. Characterized by effort to the point of exhaustion;
    Especially physical effort (synset 300840083)
    "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"
  2. Taxing to the utmost;
    Testing powers of endurance (synset 300841516)
    "his final, straining burst of speed"; "a strenuous task"; "your willingness after these six arduous days to remain here"
  3. Difficult to accomplish;
    Demanding considerable mental effort and skill (synset 300749470)
    "the arduous work of preparing a dictionary"

Found on Word Lists

Find words of a similar nature on these lists:

Other Searches