half-bred vs animal

half-bred is not a noun while animal is a noun.

Word	Noun	Adjective	Verb	Adverb
half-bred	No	Yes	No	No
animal	Yes	Yes	No	No

half-bred (noun)	animal (noun)
	a living organism characterized by voluntary movement

half-bred (adjective)	animal (adjective)
(of animals) having only one purebred parent	marked by the appetites and passions of the body