軽率

1. Origins, structure, and basic meaning

• Structure: 軽率 (けいそつ) combines lightness 軽 and conduct 率 to describe thoughtless or rash behavior.
• Basic usage: It applies to spreading unchecked information and deciding from emotion without consultation.

2. Common pitfalls and similar expressions

• Rashness is more than speed
  • 軽率な判断 criticizes insufficient checking or reflection, not merely the fact that a decision was made quickly.