pretentious vs pretense

pretentious is not a noun while pretense is a noun.

Word	Noun	Adjective	Verb	Adverb
pretentious	No	Yes	No	No
pretense	Yes	No	No	No

pretentious (noun)	pretense (noun)
	the act of giving a false appearance
	a false or unsupportable quality
	an artful or simulated semblance
	imaginative intellectual play
	pretending with intention to deceive

pretentious (adjective)	pretense (adjective)
making claim to or creating an appearance of (often undeserved) importance or distinction
intended to attract notice and impress others
(of a display) tawdry or vulgar