Antonyms of adj nonlinear

1 sense of nonlinear

Sense 1
nonlinear (vs. linear) -- (designating or involving an equation whose terms are not of the first degree)

linear (vs. nonlinear), additive -- (designating or involving an equation whose terms are of the first degree)
        => bilinear -- (linear with respect to each of two variables or positions)

Similarity of adj nonlinear

1 sense of nonlinear

Sense 1
nonlinear (vs. linear) -- (designating or involving an equation whose terms are not of the first degree)