insincere vs oleaginous

insincere and oleaginous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
insincere	No	Yes	No	No
oleaginous	No	Yes	No	No

insincere (adjective)	oleaginous (adjective)
lacking sincerity	containing an unusual amount of grease or oil
	unpleasantly and excessively suave or ingratiating in manner or speech