mishegaas vs indulgence

mishegaas and indulgence both are nouns.

Word	Noun	Adjective	Verb	Adverb
mishegaas	Yes	No	No	No
indulgence	Yes	No	No	No

As nouns, indulgence is a hypernym of mishegaas; that is, indulgence is a word with a broader meaning than mishegaas:

Other hypernyms of mishegaas include craziness, folly, foolery, lunacy, tomfoolery.

mishegaas (noun)	indulgence (noun)
(Yiddish) craziness; senseless behavior or activity	the act of indulging or gratifying a desire
	foolish or senseless behavior
	the remission by the pope of the temporal punishment in purgatory that is still due for sins even after absolution
	an inability to resist the gratification of whims and desires
	a disposition to yield to the wishes of someone