nontrivial: Meaning and Definition of

non•triv•i•al

Pronunciation: (non-triv'ē-ul), [key]
— adj.
  1. not trivial.
  2. noting a solution of a linear equation in which the value of at least one variable of the equation is not equal to zero.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.