peculiar vs funny

peculiar is not a noun while funny is a noun.

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

As adjectives, peculiar and funny are synonyms defined as:

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

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

peculiar (adjective)	funny (adjective)
characteristic of one only; distinctive or special	arousing or provoking laughter
unique or specific to a person or thing or category	experiencing odd bodily sensations
beyond or deviating from the usual or expected	not as expected
markedly different from the usual; special	beyond or deviating from the usual or expected