curious vs funny

curious is not a noun while funny is a noun.

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

As adjectives, curious and funny are synonyms defined as:

Other synonyms of curious include odd, peculiar, queer, rum, rummy, singular.

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

curious (adjective)	funny (adjective)
eager to investigate and learn or learn more (sometimes about others' concerns)	arousing or provoking laughter
beyond or deviating from the usual or expected	experiencing odd bodily sensations
	not as expected
	beyond or deviating from the usual or expected