unmitigated vs thoroughgoing

unmitigated and thoroughgoing both are adjectives.

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

unmitigated (adjective)	thoroughgoing (adjective)
not diminished or moderated in intensity or severity; sometimes used as an intensifier	performed comprehensively and completely; not superficial or partial
	without qualification; used informally as (often pejorative) intensifiers