fishy vs shady

fishy and shady both are adjectives.

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

As adjectives, fishy and shady are synonyms defined as:

Other synonyms of fishy include funny, suspect, suspicious.

fishy (adjective)	shady (adjective)
of or relating to or resembling fish	quiet, dark, or concealed
not as expected	of questionable honesty or legality
	not as expected
	filled with shade