obtuse vs depreciation

obtuse is not a noun while depreciation is a noun.

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

obtuse (noun)	depreciation (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

obtuse (adjective)	depreciation (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