hellish vs colloquialism

hellish is not a noun while colloquialism is a noun.

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

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

hellish (adjective)	colloquialism (adjective)
extremely evil or cruel; expressive of cruelty or befitting hell
(informal) very unpleasant