不共戴天 bù gòng dài tiān 🔊 cannot live under the same sky + Keep this word Meanings bù gòng dài tiān (idiom) (of enemies) cannot live under the same sky; absolutely irreconcilable Its characters 不bùnot; noHSK 1共gòngcommonHSK 4戴dàito put on or wear (glasses, hat, gloves etc)HSK 4天tiāndayHSK 1