unattached vs animal

unattached is not a noun while animal is a noun.

Word	Noun	Adjective	Verb	Adverb
unattached	No	Yes	No	No
animal	Yes	Yes	No	No

unattached (noun)	animal (noun)
	a living organism characterized by voluntary movement

unattached (adjective)	animal (adjective)
not associated in an exclusive sexual relationship	marked by the appetites and passions of the body
not fastened together
(of animals) able to swim about; not attached