perpetual vs permanent

perpetual is not a noun while permanent is a noun.

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

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

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