venturer vs lunatic

venturer and lunatic both are nouns.

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

As nouns, lunatic is a hyponym of venturer; that is, lunatic is a word with a more specific, narrower meaning than venturer:

venturer (noun)	lunatic (noun)
a person who enjoys taking risks	an insane person
a merchant who undertakes a trading venture (especially a venture that sends goods overseas)	a reckless impetuous irresponsible person

venturer (adjective)	lunatic (adjective)
	insane and believed to be affected by the phases of the moon