mishegaas vs tomfoolery

mishegaas and tomfoolery both are nouns.

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

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

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

mishegaas (noun)	tomfoolery (noun)
(Yiddish) craziness; senseless behavior or activity	foolish or senseless behavior