How to say irresponsible in Japanese

JLPTN1
いい加減☆【いいかげんiikagen】好い加減・好加減irr. Inflection

adjectival noun:

  • irresponsible; perfunctory; careless
  • lukewarm; half-baked; halfhearted; vague
  • reasonable; moderate - usu. in suggestions or orders ➜ いい加減にする

adverb:

  • considerably; quite; rather; pretty

Example Sentences

約束を破るyakusokuwoyaburuなんてnante無責任musekininだda。
It is irresponsible of you to break your promise.
約束を破るyakusokuwoyaburuとはtoha彼kareもmo無責任musekininだda。
It was irresponsible of him to break a promise.
彼女kanojoはha無責任musekininすぎるsugiruのでnode、あてateにni出来ないdekinaiよyo。
You cannot count on her because she's too irresponsible.
彼女kanojoはha私watashiをwo無責任musekininだdaとto非難hinanしたshita。
She charged me with being irresponsible.
彼kareはha怠惰taidaでde無責任musekininだったdatta。結局kekkyoku、彼kareはha退社taishaをwo命じられたmeijirareta。
He was lazy and irresponsible. Thus, he was told to leave the company.

© Based on JMdict, KANJIDIC2, and JMnedict, property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. Example sentences from the Tatoeba project (CC BY 2.0). Kanji stroke order data from the KanjiVG project by Ulrich Apel (CC BY-SA 3.0). See comprehensive list of data sources for more info.