(informal)full of uncertainty; doubtful (非正式)未确定的;可怀疑的 the prospect for classes resuming next Wednesday seems iffy. 下星期三是否能继续上课,看来并不确定。 ■of doubtful quality or legality 可疑的;有问题的 a good wine merchant will change the iffy bottles for sound ones. 一个好的酒商会拿安全的酒瓶替换有问题的酒瓶。