Meaning and Usage
The adjective 鋭い (するどい) primarily means "sharp" or "pointed" when describing physical objects like knives or blades. It also extends metaphorically to describe keen senses, intelligence, or insight, such as a sharp observation or sharp opinions.
Common Contexts
- Physical sharpness: knives, blades, edges.
- Mental sharpness: observation skills, wit, opinions.
Collocations and Patterns
- 鋭いナイフ (sharp knife): describing a physically sharp object.
- 鋭い観察力 (keen observation): describing mental acuity.
- 鋭い意見 (sharp opinion): describing incisive or critical remarks.
Register and Nuance
鋭い is a neutral adjective used in both formal and informal contexts. When used metaphorically, it often implies a positive quality such as intelligence or perceptiveness, but can also suggest criticism or harshness depending on context.
Common Learner Mistake
Avoid confusing 鋭い with words that mean "strong" or "intense" like 強い. 鋭い specifically refers to sharpness or keenness, not general strength or power.