depreciation vs imbecility

depreciation and imbecility both are nouns.

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

depreciation (noun)	imbecility (noun)
a decrease in price or value	a stupid mistake
a communication that belittles somebody or something	retardation more severe than a moron but not as severe as an idiot
decrease in value of an asset due to obsolescence or use