nonindulgence vs austerity

nonindulgence and austerity both are nouns.

Word	Noun	Adjective	Verb	Adverb
nonindulgence	Yes	No	No	No
austerity	Yes	No	No	No

As nouns, nonindulgence and austerity are synonyms defined as:

nonindulgence and austerity: the trait of great self-denial (especially refraining from worldly pleasures)

Other synonyms of nonindulgence include asceticism.

nonindulgence (noun)	austerity (noun)
the trait of great self-denial (especially refraining from worldly pleasures)	the trait of great self-denial (especially refraining from worldly pleasures)