erratic vs unsettled

erratic and unsettled both are adjectives.

Word	Noun	Adjective	Verb	Adverb
erratic	No	Yes	No	No
unsettled	No	Yes	No	No

erratic (adjective)	unsettled (adjective)
liable to sudden unpredictable change	not settled or established
likely to perform unpredictably	still in doubt
having no fixed course	not yet settled
	subject to change