self-importance vs depreciation

self-importance and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
self-importance	Yes	No	No	No
depreciation	Yes	No	No	No

self-importance (noun)	depreciation (noun)
an exaggerated opinion of your own importance	a decrease in price or value
an inflated feeling of pride in your superiority to others	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use