wriggly vs writhing

wriggly and writhing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
wriggly	No	Yes	No	No
writhing	No	Yes	No	No

As adjectives, wriggly and writhing are synonyms defined as:

wriggly and writhing: moving in a twisting or snake-like or wormlike fashion

Other synonyms of wriggly include wiggly, wriggling.

wriggly (adjective)	writhing (adjective)
moving in a twisting or snake-like or wormlike fashion	moving in a twisting or snake-like or wormlike fashion