insincere vs obsequious

insincere and obsequious both are adjectives.

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

insincere (adjective)	obsequious (adjective)
lacking sincerity	attempting to win favor from influential people by flattery
	attentive in an ingratiating or servile manner