unresolvedundecidedunsettledunconcludeduncertainawaiting decisionawaiting actionundetermined(still) openhanging fire(up) in the airin limboin the balanceon icein reservein abeyanceongoingawaiting attentionoutstandingto be doneundonenot doneunattended tounfinishedincompleteleftremaininginformal：on the back burner
介词
1
until (something) happens or takes place.
they were released on bail pending an appeal
同义词：
awaitingwaiting foruntiltillbeforeuntil there is/are
