盲点

1. Origins, structure, and basic meaning

• Structure: 盲点 is read もうてん and means a point overlooked in one's thinking or examination.
• Basic usage: It is used for an overlooked weakness in a system or a problem in a plan noticed only after a question.

2. Common pitfalls and similar expressions

• Focus compared with 欠点
  • 欠点(けってん) broadly refers to a weakness or undesirable feature. 盲点 focuses specifically on something the person examining the matter had overlooked.