depreciation vs irritating

depreciation is a noun but irritating is not a noun.

Word	Noun	Adjective	Verb	Adverb
depreciation	Yes	No	No	No
irritating	No	Yes	No	No

depreciation (noun)	irritating (noun)
a decrease in price or value
a communication that belittles somebody or something
decrease in value of an asset due to obsolescence or use

depreciation (adjective)	irritating (adjective)
	causing irritation or annoyance
	(used of physical stimuli) serving to stimulate or excite
	causing physical discomfort