nonlinear

• ⇰ 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 <ant>linear</ant>.
• ⇰ Containing variables of greater than the first degree; -- of an equation. Opposite of <ant>linear</ant>.
• ⇰ Represented by equations containing variables of greater than the first degree; -- of physical processes or relationships. Opposite of <ant>linear</ant>.