shady vs colloquialism

shady is not a noun while colloquialism is a noun.

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

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

shady (adjective)	colloquialism (adjective)
quiet, dark, or concealed
of questionable honesty or legality
not as expected
filled with shade