absurdity vs folly

absurdity and folly both are nouns.

Word	Noun	Adjective	Verb	Adverb
absurdity	Yes	No	No	No
folly	Yes	No	No	No

As nouns, folly is a hypernym of absurdity; that is, folly is a word with a broader meaning than absurdity:

Other hypernyms of absurdity include foolishness, unwiseness.

absurdity (noun)	folly (noun)
a ludicrous folly	foolish or senseless behavior
a message whose content is at variance with reason	a stupid mistake
	the trait of acting stupidly or rashly
	the quality of being rash and foolish