distended vs swollen

distended and swollen both are adjectives.

Word	Noun	Adjective	Verb	Adverb
distended	No	Yes	No	No
swollen	No	Yes	No	No

As adjectives, distended and swollen are synonyms defined as:

Other synonyms of distended include bloated, intumescent, puffy, tumescent, tumid, turgid.

distended (adjective)	swollen (adjective)
abnormally distended especially by fluids or gas	characteristic of false pride; having an exaggerated sense of self-importance
	abnormally distended especially by fluids or gas