知ったことじゃない
Expression- 1that's not my concern ; that's none of my business ; that's not on me Translated by Jiyomi
Other writings and readings
知った事じゃない知った事じゃ無いしった事じゃない
expressions (phrases, clauses, etc.)
Kanji · tap to open
JMdict entry 2868389. Source and licence.