tearaway vs lunatic

tearaway and lunatic both are nouns.

Word	Noun	Adjective	Verb	Adverb
tearaway	Yes	Yes	No	No
lunatic	Yes	Yes	No	No

As nouns, lunatic is a hypernym of tearaway; that is, lunatic is a word with a broader meaning than tearaway:

Other hypernyms of tearaway include daredevil, harum-scarum, hothead, madcap, swashbuckler.

tearaway (noun)	lunatic (noun)
a reckless and impetuous person	an insane person
	a reckless impetuous irresponsible person

tearaway (adjective)	lunatic (adjective)
characterized by undue haste and lack of thought or deliberation	insane and believed to be affected by the phases of the moon