colloquialism vs terrible

colloquialism is a noun but terrible is not a noun.

Word	Noun	Adjective	Verb	Adverb
colloquialism	Yes	No	No	No
terrible	No	Yes	No	No

colloquialism (noun)	terrible (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

colloquialism (adjective)	terrible (adjective)
	causing fear or dread or terror
	extreme in degree or extent or amount or impact
	intensely or extremely bad or unpleasant in degree or quality
	exceptionally bad or displeasing