daredevil vs madcap

daredevil and madcap both are nouns.

Word	Noun	Adjective	Verb	Adverb
daredevil	Yes	Yes	No	No
madcap	Yes	Yes	No	No

As nouns, daredevil and madcap are synonyms defined as:

Other synonyms of daredevil include harum-scarum, hothead, lunatic, swashbuckler.

daredevil (noun)	madcap (noun)
a reckless impetuous irresponsible person	a reckless impetuous irresponsible person

daredevil (adjective)	madcap (adjective)
presumptuously daring	characterized by undue haste and lack of thought or deliberation