negotiate vs negotiable

negotiate is not an adjective while negotiable is an adjective.

Word	Noun	Adjective	Verb	Adverb
negotiate	No	No	Yes	No
negotiable	No	Yes	No	No

negotiate (adjective)	negotiable (adjective)
	legally transferable to the ownership of another
	able to be negotiated or arranged by compromise
	capable of being passed or negotiated

negotiate (verb)	negotiable (verb)
discuss the terms of an arrangement
succeed in passing through, around, or over