口说无凭 kǒu shuō wú píng

DEFINITIONS

  1. (idiom) you can't rely on a verbal agreement
  2. just because sb says sth, doesn't mean it's true

CHARACTERS

口 kǒu
HSK 3
mouth; open end; entrance, gate
说 shuō
HSK 1
speak, say, talk; scold, upbraid
无 wú
HSK 4
negative, no, not; KangXi radical 71
凭 píng
HSK 5
lean on, depend on, rely on