鋭い · i-adjective
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 鋭い | 鋭くない |
| Polite | 鋭いです | 鋭くないですalso 鋭くありません |
| Past polite | 鋭かったです | 鋭くなかったですalso 鋭くありませんでした |
| Past | 鋭かった | 鋭くなかった |
| Te-form | 鋭くて | 鋭くなくて |
| Adverbial | 鋭く | |
| Conditional | 鋭ければ | 鋭くなければ |
| Tara conditional | 鋭かったら | 鋭くなかったら |
This kitchen knife is very sharp.
Watch out for the cat's sharp claws.
keen; sharp; astute; perceptive
Describes sharp mental faculties, intuition, senses, insight, or discerning judgment.
He has keen powers of observation.
Dogs find prey with their acute sense of smell.
This knife's blade is sharp.
He looked at her with a piercing gaze.
A sharp pain shot through my chest.
He made an incisive point at the meeting.
My mother warned me in a sharp tone.
She used her sharp intuition to spot the culprit.
鋭い is a common i-adjective covering sharpness of blades, eyes, or minds, while 鋭敏 is a more formal na-adjective often used in technical or descriptive compounds.
鋭い emphasizes sharpness of perception, intuition, or intellect, whereas 敏感 focuses on quick, often physical or automatic responsiveness to stimuli.
鋭い is an adjective meaning sharp or keen (as in intellect or senses), while 冴える is a verb describing the state of becoming or being mentally sharp.
鋭い means sharp in perception or intellect, but 機敏 adds the nuance of prompt, practical action rather than just insight.