depreciation vs slowness

depreciation and slowness both are nouns.

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

depreciation (noun)	slowness (noun)
a decrease in price or value	a rate demonstrating an absence of haste or hurry
a communication that belittles somebody or something	lack of normal development of intellectual capacities
decrease in value of an asset due to obsolescence or use	unskillfulness resulting from a lack of training