not pertinent to the matter under consideration; an issue extraneous to the debate; the price was immaterial; mentioned several impertinent facts before finally coming to the point

[ Syn: extraneous , immaterial , impertinent ]

statistically unrelated

having a set of mutually perpendicular axes; meeting at right angles; wind and sea may displace the ships center of gravity along three orthogonal axes; a rectangular Cartesian coordinate system

[ Syn: rectangular ]