非常識

1. Origins, structure, and basic meaning

• Structure: 非常識 is read as ひじょうしき and means inconsiderate or lacking common sense.
• Basic usage: It can describe conduct as inconsiderate or warn against labeling someone without hearing about their circumstances.

2. Common pitfalls and similar expressions

• Inconsiderate conduct at night
  • 非常識: I was warned that shouting in the middle of the night was inconsiderate. Example: 夜中に大声を出すのは非常識だと注意されました。
• Labeling someone without hearing about their circumstances
  • 非常識: Do not label someone as lacking common sense without hearing about their circumstances. Example: 相手の事情を聞かずに非常識だと決めつけないでください。