curvy vs busty

curvy and busty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
curvy	No	Yes	No	No
busty	No	Yes	No	No

As adjectives, curvy and busty are synonyms defined as:

curvy and busty: (of a woman's body) having a large bosom and pleasing curves

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

curvy (adjective)	busty (adjective)
having curves	(of a woman's body) having a large bosom and pleasing curves
(of a woman's body) having a large bosom and pleasing curves