open-ended

adjective

1. 1

   Unrestricted by definite limits.

   “There will be an open-ended discussion.”

2. 2

   Adaptable to change.

   “The topic is definitions, but is open-ended really.”

3. 3

   Permitting a spontaneous or unstructured response.

   “I'll ask you an open-ended question.”

4. 4

   Of a straight draw, made up of four consecutive cards, thus able to be completed by either of two ranks of card.

   “The flop of 3-6-Q gave Brunson an open-ended straight draw with his 4-5 of hearts.”