difficult to accomplish; demanding considerable mental effort and skill; "the arduous work of preparing a dictionary"
characterized by toilsome 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
not processed or subjected to analysis; "raw data"; "the raw cost of production"; "only the crude vital statistics"
belonging to an early stage of technical development; characterized by simplicity and (often) crudeness; "the crude weapons and rude agricultural implements of early man"; "primitive movies of the 1890s"; "primitive living conditions in the Appalachian mountains"
not carefully or expertly made; "managed to make a crude splint"; "a crude cabin of logs with bark still on them"; "rough carpentry"
a cataclysm resulting from a destructive sea wave caused by an earthquake or volcanic eruption; "a colossal tsunami destroyed the Minoan civilization in minutes"
not complete or total; not completed; "an incomplete account of his life"; "political consequences of incomplete military success"; "an incomplete forward pass"
not yet finished; "his thesis is still incomplete"; "an uncompleted play"
an obvious change of public opinion or political sentiment that occurs without leadership or overt expression; "there was a ground swell of antiwar sentiment"
come into sight or view; "He suddenly appeared at the wedding"; "A new star appeared on the horizon"
come into being or existence, or appear on the scene; "Then the computer came along and changed our lives"; "Homo sapiens appeared millions of years ago"
be issued or published; "Did your latest book appear yet?"; "The new Woody Allen film hasn't come out yet"
appear as a character on stage or appear in a play, etc.; "Gielgud appears briefly in this movie"; "She appeared in `Hamlet' on the London stage"
seem to be true, probable, or apparent; "It seems that he is very gifted"; "It appears that the weather in California is very bad"
present oneself formally, as before a (judicial) authority; "He had to appear in court last month"; "She appeared on several charges of theft"