insincere vs glossy

insincere is not a noun while glossy is a noun.

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

insincere (noun)	glossy (noun)
	a photograph that is printed on smooth shiny paper
	a magazine printed on good quality paper

insincere (adjective)	glossy (adjective)
lacking sincerity	superficially attractive and stylish; suggesting wealth or expense
	reflecting light
	(of paper and fabric and leather) having a surface made smooth and shiny especially by pressing between rollers
	based on pretense; deceptively pleasing