Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb writhe

1 sense of writhe

Sense 1
writhe, wrestle, wriggle, worm, squirm, twist -- (to move in a twisting or contorted motion, (especially when struggling); "The prisoner writhed in discomfort"; "The child tried to wriggle free from his aunt's embrace")
       => move -- (move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right")

Antonyms of adj writhing

1 sense of writhing

Sense 1
wiggly, wriggling, wriggly, writhing -- (moving in a twisting or snake-like or wormlike fashion; "wiggly worms")

INDIRECT (VIA moving) -> nonmoving, unmoving -- (not in motion)

Similarity of adj writhing

1 sense of writhing

Sense 1
wiggly, wriggling, wriggly, writhing -- (moving in a twisting or snake-like or wormlike fashion; "wiggly worms")
       => moving (vs. nonmoving) -- (in motion; "a constantly moving crowd"; "the moving parts of the machine")