反面教師(はんめんきょうし)

はんめんきょうし
noun
negative example; someone whose bad behavior serves as a lesson in what not to do
formalwrittensociety
1. negative example; someone whose bad behavior serves as a lesson in what not to do
A person whose bad qualities or mistakes can teach others what to avoid. The concept originated in Mao Zedong's political theory and is now widely used in everyday Japanese to describe someone who serves as a cautionary example.
あの人(ひと)は反面教師(はんめんきょうし)だ。
That person is a negative example.
父(ちち)の失敗(しっぱい)を反面教師(はんめんきょうし)にして生(い)きてきた。
I've lived my life using my father's failures as a lesson in what not to do.
Using my boss's attitude as an example of what not to do, I make sure to treat my subordinates kindly.

Originally from Mao Zedong's political theory, referring to a person whose bad qualities or mistakes can teach others what to avoid. Unlike a role model (手本(てほん)), a 反面教師(はんめんきょうし) provides a lesson through negative behavior.

Common collocations

  • 反面教師(はんめんきょうし)にする: to use as a negative example
  • 反面教師(はんめんきょうし)として学(まな)ぶ: to learn from a bad example
  • 反面教師(はんめんきょうし)になる: to become a cautionary example

Similar words

  • 手本(てほん): model, example — positive example to follow
  • 他山(たざん)の石(いし): a lesson drawn from others' mistakes — more literary, from a Chinese proverb
  • 見本(みほん): sample, specimen — shows what something looks like, not necessarily behavioral