Requiring real thought or significaNT computing power. Often used as an understated way of saying that a problem is quite difficult or impractical, or even eNTirely unsolvable ("Proving P=NP is noNTrivial"). The preferred emphatic form is "decidedly noNTrivial". See uniNTeresting, iNTeresting. [Jargon File] (1995-02-21)