gaffe vs gaucherie

gaffe and gaucherie both are nouns.

Word	Noun	Adjective	Verb	Adverb
gaffe	Yes	No	No	No
gaucherie	Yes	No	No	No

As nouns, gaffe and gaucherie are synonyms defined as:

Other synonyms of gaffe include faux pas, slip, solecism.

gaffe (noun)	gaucherie (noun)
a socially awkward or tactless act	a socially awkward or tactless act
	the quality of being rustic or gauche