onlychoice

noun
UK /ˈəʊnli tʃɔɪs/
US /ˈoʊnli tʃɔɪs/

The one thing you can pick when there is nothing else to pick.

With the last bus gone, walking home was my onlychoice.


OTHER MEANINGS

2. The single person or thing left to select.

She was the onlychoice for team captain after everyone else said no.

3. A decision you must make because no other path is open.

Staying inside during the storm was the onlychoice.

4. The final remaining possibility in a game or puzzle.

The onlychoice left on the board was the red square.