kinky vs offbeat

kinky is not a noun while offbeat is a noun.

Word	Noun	Adjective	Verb	Adverb
kinky	No	Yes	No	No
offbeat	Yes	Yes	No	No

As adjectives, kinky and offbeat are synonyms defined as:

Other synonyms of kinky include far-out, quirky, way-out.

kinky (noun)	offbeat (noun)
	an unaccented beat (especially the last beat of a measure)

kinky (adjective)	offbeat (adjective)
(used of sexual behavior) showing or appealing to bizarre or deviant tastes	(informal) strikingly unconventional
(of hair) in small tight curls
(informal) strikingly unconventional