fishy vs funny

fishy is not a noun while funny is a noun.

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

As adjectives, fishy and funny are synonyms defined as:

Other synonyms of fishy include shady, suspect, suspicious.

fishy (noun)	funny (noun)
	an account of an amusing incident (usually with a punch line)

fishy (adjective)	funny (adjective)
of or relating to or resembling fish	arousing or provoking laughter
not as expected	experiencing odd bodily sensations
	not as expected
	beyond or deviating from the usual or expected