Antonyms of adj curvilinear

1 sense of curvilinear

Sense 1
curvilineal, curvilinear -- (characterized by or following a curved line; "curvilinear tracery"; "curvilinear motion")

INDIRECT (VIA curved) -> straight -- (free from curves or angles; "a straight line")

Similarity of adj curvilinear

1 sense of curvilinear

Sense 1
curvilineal, curvilinear -- (characterized by or following a curved line; "curvilinear tracery"; "curvilinear motion")
       => curved (vs. straight), curving -- (having or marked by a curve or smoothly rounded bend; "the curved tusks of a walrus"; "his curved lips suggested a smile but his eyes were hard")