一丁不識 yī dīng bù shí

DEFINITIONS

  1. illiterate
  2. ignorant

CHARACTERS

一 yī
HSK 1
one; a, an; alone
丁 dīng
HSK 6
male adult; robust, vigorous; 4th heavenly stem
不 bù
HSK 1
no, not; un-; negative prefix
識 shí recognize, understand, know