slaughter vs slaughterous

slaughter is a noun but slaughterous is not a noun.

Word	Noun	Adjective	Verb	Adverb
slaughter	Yes	No	Yes	No
slaughterous	No	Yes	No	No

slaughter (noun)	slaughterous (noun)
the killing of animals (as for food)
the savage and excessive killing of many people
a sound defeat

slaughter (adjective)	slaughterous (adjective)
	accompanied by bloodshed

slaughter (verb)	slaughterous (verb)
kill a large number of people indiscriminately
kill (animals) usually for food consumption