open-ended
adjectiveUK /ˌəʊpən ˈendɪd/
US /ˌoʊpən ˈendɪd/
Something open-ended has no fixed limit or ending, so it can go on in many ways.
The teacher asked an open-ended question that had many possible answers.
RELATED WORDS
OTHER MEANINGS
2. Not having a planned end or finish.
They started an open-ended project with no deadline.
3. Allowing many different answers or choices.
The survey included open-ended questions where people could write anything.
4. Able to change or continue without a set limit.
The two countries agreed to an open-ended ceasefire.