Antonyms of adj sinuate

2 senses of sinuate

Sense 1
sinuate, sinuous, wiggly -- (curved or curving in and out; "wiggly lines")

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

Sense 2
sinuate -- (having a strongly waved margin alternately concave and convex)

INDIRECT (VIA smooth) -> rough -- (of the margin of a leaf shape; having the edge cut or fringed or scalloped)

Similarity of adj sinuate

2 senses of sinuate

Sense 1
sinuate, sinuous, wiggly -- (curved or curving in and out; "wiggly lines")
       => 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")

Sense 2
sinuate -- (having a strongly waved margin alternately concave and convex)
       => smooth (vs. rough) -- (of the margin of a leaf shape; not broken up into teeth)