unanswered

From Middle English unansuered, unanswerd, equivalent to un- +‎ answered.

unanswered (not comparable)

1. That has not been answered or addressed.

   The flashing light on the answering machine bore testimony to the unanswered call.

   • 2012, July 15. Richard Williams in Guardian Unlimited, Tour de France 2012: Carpet tacks cannot force Bradley Wiggins off track

     The timing of the incident raised the question, almost certainly destined to remain unanswered, of whether, having allowed the escapers to pass by unhindered, the culprit had waited specifically for the yellow jersey group before sowing his mischief.