tragicomedy vs tragicomic

tragicomedy is a noun but tragicomic is not a noun.

Word	Noun	Adjective	Verb	Adverb
tragicomedy	Yes	No	No	No
tragicomic	No	Yes	No	No

tragicomedy (noun)	tragicomic (noun)
a dramatic composition involving elements of both tragedy and comedy usually with the tragic predominating
a comedy with serious elements or overtones

tragicomedy (adjective)	tragicomic (adjective)
	of or relating to or characteristic of tragicomedy
	having pathetic as well as ludicrous characteristics
	manifesting both tragic and comic aspects