uncool vs jargon

uncool is not a noun while jargon is a noun.

Word	Noun	Adjective	Verb	Adverb
uncool	No	Yes	No	No
jargon	Yes	No	No	No

uncool (noun)	jargon (noun)
	a characteristic language of a particular group (as among thieves)
	specialized technical terminology characteristic of a particular subject
	a colorless (or pale yellow or smoky) variety of zircon

uncool (adjective)	jargon (adjective)
(spoken slang) unfashionable and boring