depreciation vs obtuse

depreciation is a noun but obtuse is not a noun.

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

depreciation (noun)	obtuse (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)	obtuse (adjective)
	of an angle; between 90 and 180 degrees
	(of a leaf shape) rounded at the apex
	slow to learn or understand; lacking intellectual acuity
	lacking in insight or discernment