open question

Noun

open question (plural open questions)

1. A type of question that cannot be answered with a simple yes or no and requires a longer, more detailed response.
   • Thus an open question is one that permits a broad range of responses, while a closed question usually calls for a single-word response such as "yes" or "no" or a number.2001, Belainesh Araya, Counseling in an Eritrean Context, page 181

   Synonyms:

   open-ended question

   Antonyms:

   closed question

2. A question whose answer is not fixed by the definition of the terms contained within it.
3. Synonym of open problem.

   Synonyms:

   open problem