open-ended vs indeterminate

open-ended and indeterminate both are adjectives.

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

open-ended (adjective)	indeterminate (adjective)
allowing for future changes or revisions	not precisely determined or established; not fixed or known in advance
allowing for a spontaneous response	having a capacity for continuing to grow at the apex
without fixed limits or restrictions	of uncertain or ambiguous nature
	not leading to a definite ending or result
	(of a quantity) having no definite value, as an equation that cannot be solved