inclined vs gradual

inclined is not a noun while gradual is a noun.

Word	Noun	Adjective	Verb	Adverb
inclined	No	Yes	No	No
gradual	Yes	Yes	No	No

inclined (noun)	gradual (noun)
	(Roman Catholic Church) an antiphon (usually from the Book of Psalms) immediately after the epistle at Mass

inclined (adjective)	gradual (adjective)
at an angle to the horizontal or vertical position	proceeding in small stages
(often followed by `to') having a preference, disposition, or tendency	(of a topographical gradient) not steep or abrupt
having made preparations