先天不足 xiān tiān bù zú 🔊 to suffer from a congenital deficiency + Keep this word Meanings xiān tiān bù zú to suffer from a congenital deficiency; to have an inherent weakness Its characters 先xiānbeforehand; first; earlierHSK 3天tiāndayHSK 1不bùnot; noHSK 1足zúfoot; legHSK 6