half-breed vs half-blooded

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

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

As adjectives, half-breed and half-blooded are synonyms defined as:

half-breed and half-blooded: (of animals) having only one purebred parent

Other synonyms of half-breed include half-bred.

half-breed (noun)	half-blooded (noun)
an offensive term for an offspring of parents of different racial group (especially of Caucasian and American Indian ancestry)

half-breed (adjective)	half-blooded (adjective)
(of animals) having only one purebred parent	(of animals) having only one purebred parent