gauntness vs boniness

gauntness and boniness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gauntness	Yes	No	No	No
boniness	Yes	No	No	No

As nouns, gauntness and boniness are synonyms defined as:

gauntness and boniness: extreme leanness (usually caused by starvation or disease)

Other synonyms of gauntness include bonyness, emaciation, maceration.

gauntness (noun)	boniness (noun)
extreme leanness (usually caused by starvation or disease)	extreme leanness (usually caused by starvation or disease)