chaos vs chaotic

chaos is a noun but chaotic is not a noun.

Word	Noun	Adjective	Verb	Adverb
chaos	Yes	No	No	No
chaotic	No	Yes	No	No

chaos (noun)	chaotic (noun)
(physics) a dynamical system that is extremely sensitive to its initial conditions
the formless and disordered state of matter before the creation of the cosmos
a state of extreme confusion and disorder

chaos (adjective)	chaotic (adjective)
	of or relating to a sensitive dependence on initial conditions
	lacking a visible order or organization
	completely unordered and unpredictable and confusing