faux pas vs bloomer

faux pas and bloomer both are nouns.

Word	Noun	Adjective	Verb	Adverb
faux pas	Yes	No	No	No
bloomer	Yes	No	No	No

As nouns, bloomer is a hypernym of faux pas; that is, bloomer is a word with a broader meaning than faux pas:

Other hypernyms of faux pas include blooper, blunder, boner, boo-boo, botch, bungle, flub, foul-up, fuckup, pratfall.

faux pas (noun)	bloomer (noun)
a socially awkward or tactless act	an embarrassing mistake
	a flower that blooms in a particular way