iffy

an iffy situation/proposal/decision不稳定的形势；无把握的提议/决定

It's iffy [=doubtful] whether he can play in the game.他能否参加比赛还不能确定。

I'm hoping to play golf tomorrow, but the weather looks a bit iffy. [=there's a chance that the weather will be bad]我希望明天打高尔夫球，但天气看起来不大好。