断定

1. Origins, structure, and basic meaning

• Structure: 断定 is read as だんてい and means “definite conclusion” and “assertion”.
• Basic usage: It describes refusing to fix on one cause and being unable to identify an animal from a shadow alone.

2. Common pitfalls and similar expressions

• 断定しなかった / 断定できない
  • It means reaching a definite judgment on evidence. 断定しなかった is a deliberate refusal, while 断定できない signals insufficient basis or ability.