nonlinear(a = adj.all) - designating or involving an equation whose terms are not of the first degree;
Antonym: linear
1. Not depictable graphically as a straight line; not changing by a constant amount for each unit of time, distance, or other independent variable. Opposite of
2. Containing variables of greater than the first degree; -- of an equation. Opposite of
3. Represented by equations containing variables of greater than the first degree; -- of physical processes or relationships. Opposite of
nonlinear correlation, nonlinear distortion, nonlinear system