賢い

1. Origins, structure, and basic meaning

• Structure: 賢い is read as かしこい and is an い-adjective describing wise judgment or a person or animal as clever at understanding and learning.
• Basic usage: A wise choice appears in 賢い判断, while an intelligent animal appears in その犬は賢い.

2. Common pitfalls and similar expressions

• Wisdom and cleverness
  • It can describe sound judgment, such as choosing not to overexert oneself, or the understanding and learning ability of an animal that masters signals.
• Difference from 頭がいい
  • 頭がいい is an everyday expression for strong intellect or understanding, while 賢い can also convey wisdom in judging and acting appropriately in a real situation.