willing vs inclined

willing is a noun but inclined is not a noun.

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

willing (noun)	inclined (noun)
the act of making a choice

willing (adjective)	inclined (adjective)
disposed or inclined toward	at an angle to the horizontal or vertical position
not brought about by coercion or force	(often followed by `to') having a preference, disposition, or tendency
	having made preparations