unrestricted vs open-ended

unrestricted and open-ended both are adjectives.

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

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