nature vs ill-natured

nature is a noun but ill-natured is not a noun.

Word	Noun	Adjective	Verb	Adverb
nature	Yes	No	No	No
ill-natured	No	Yes	No	No

nature (noun)	ill-natured (noun)
the complex of emotional and intellectual attributes that determine a person's characteristic actions and reactions
the essential qualities or characteristics by which something is recognized
a particular type of thing
the natural physical world including plants and animals and landscapes etc.
a causal agent creating and controlling things in the universe

nature (adjective)	ill-natured (adjective)
	having an irritable and unpleasant disposition