having a set of mutually perpendicular axes; meeting at right angles; "wind and sea may displace the ship's center of gravity along three orthogonal axes"; "a rectangular Cartesian coordinate system"
lose clarity or turn aside especially from the main subject of attention or course of argument in writing, thinking, or speaking; "She always digresses when telling a story"; "her mind wanders"; "Don't digress when you give a lecture"
characterized by a high degree or intensity; often used as a combining form; "the questioning was intensive"; "intensive care"; "research-intensive"; "a labor-intensive industry"
of agriculture; intended to increase productivity of a fixed area by expending more capital and labor; "intensive agriculture"; "intensive conditions"
tending to give force or emphasis; "an intensive adverb"
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
(of language) transparently clear; easily understandable; "writes in a limpid style"; "lucid directions"; "a luculent oration"- Robert Burton; "pellucid prose"; "a crystal clear explanation"; "a perspicuous argument"