空穴来风 Traditional 空穴來風 kōng xué lái fēng 🔊 lit. wind from an empty cave (idiom) + Keep this word Meanings kōng xué lái fēng 空穴來風 lit. wind from an empty cave (idiom)fig. unfounded (story)baseless (claim) Its characters 空kōngemptyHSK 4穴xuécave来láito comeHSK 1风fēngwindHSK 3