well-endowed vs buxom

well-endowed and buxom both are adjectives.

Word	Noun	Adjective	Verb	Adverb
well-endowed	No	Yes	No	No
buxom	No	Yes	No	No

As adjectives, well-endowed and buxom are synonyms defined as:

well-endowed and buxom: (of a woman's body) having a large bosom and pleasing curves

Other synonyms of well-endowed include bosomy, busty, curvaceous, curvy, full-bosomed, sonsie, sonsy, stacked, voluptuous.

well-endowed (adjective)	buxom (adjective)
(of a woman's body) having a large bosom and pleasing curves	(of a female body) healthily plump and vigorous
	(of a woman's body) having a large bosom and pleasing curves