open-ended vs unrestricted

open-ended and unrestricted both are adjectives.

Word	Noun	Adjective	Verb	Adverb
open-ended	No	Yes	No	No
unrestricted	No	Yes	No	No

open-ended (adjective)	unrestricted (adjective)
allowing for future changes or revisions	not subject to or subjected to restriction
allowing for a spontaneous response	free of restrictions on conduct
without fixed limits or restrictions	not restricted or exclusive
	never having had security classification
	not restricted or modified in meaning