頭がさえる【あたまがさえる】
Frequency rank: – (for form 頭が冴える: 43,773. – 44,486.)
- to be clear-headedoften 頭が冴えた
expressions (phrases, clauses, etc.); Ichidan verb
Generated: This expression is used to describe a state of mental clarity and alertness, often indicating that a person is able to think and make decisions effectively.