inconstant vs changeable

inconstant and changeable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
inconstant	No	Yes	No	No
changeable	No	Yes	No	No

inconstant (adjective)	changeable (adjective)
likely to change frequently often without apparent or cogent reason; variable	such that alteration is possible; having a marked tendency to change
	capable of or tending to change in form or quality or nature
	varying in color when seen in different lights or from different angles
	subject to change