unmitigated vs flaming

unmitigated is not a noun while flaming is a noun.

Word	Noun	Adjective	Verb	Adverb
unmitigated	No	Yes	No	No
flaming	Yes	Yes	No	No

unmitigated (noun)	flaming (noun)
	the process of combustion of inflammable materials producing heat and light and (often) smoke

unmitigated (adjective)	flaming (adjective)
not diminished or moderated in intensity or severity; sometimes used as an intensifier	passionate or quick-tempered
	informal intensifiers