open question


noun

a matter which is undecided
a question that cannot be answered with a yes or no but requires a developed answer

Idioms and Phrases with open question

open question

An unresolved issue, one that has not been finally determined. For example, Whether the town should pave all the unpaved roads remains an open question. In the mid-1800s this term acquired a specific meaning in the British Parliament, that is, “an issue on which members may vote independently, without respect to their party affiliation.”