open question

NOUN

undecided issue

Synonyms

WEAK

anybody's guess loose end question rhetorical question toss of a coin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For now, the true reason behind the rise and disappearance of giant insects remains an open question.

From Science Daily • Apr. 25, 2026

The open question now is how much progress the countries can make in Pakistan.

From BBC • Apr. 24, 2026

Whether it will be enough to spare her is an open question.

From Salon • Apr. 23, 2026

Whether bypassing the news media will actually benefit tech's cause remains an open question.

From Barron's • Apr. 3, 2026

Yet geography obviously has some effect on history; the open question concerns how much effect, and whether geography can account for history’s broad pattern.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond