bust vs busty

bust is a noun but busty is not a noun.

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

bust (noun)	busty (noun)
an occasion for excessive eating or drinking
a sculpture of the head and shoulders of a person
the chest of a woman
a complete failure

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

bust (verb)	busty (verb)
break open or apart suddenly and forcefully
go to pieces
ruin completely
separate or cause to separate abruptly
search without warning, make a sudden surprise attack on