animal vs half-blooded

animal is a noun but half-blooded is not a noun.

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

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

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