unending vs permanent

unending is not a noun while permanent is a noun.

Word	Noun	Adjective	Verb	Adverb
unending	No	Yes	No	No
permanent	Yes	Yes	No	No

unending (noun)	permanent (noun)
	a series of waves in the hair made by applying heat and chemicals

unending (adjective)	permanent (adjective)
continuing forever or indefinitely	continuing or enduring without marked change in status or condition or place
	not capable of being reversed or returned to the original condition