知ったことではない

しったことではないshittakotodehanai

expression

  1. that's got nothing to do with me
  2. that's none of my business
  3. that doesn't involve me

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences