一不小心 yī bù xiǎo xīn 🔊 to be a little bit careless + Keep this word Meanings yī bù xiǎo xīn to be a little bit careless; to have a moment of inattentiveness; accidentally Its characters 一yīoneHSK 1不bùnot; noHSK 1小xiǎosmall; youngHSK 1心xīnheartHSK 4