勘が鋭い (kan ga surudoi)
Grammar & Usage
How it works
Composed of the noun 勘 (kan, intuition/hunch), the subject marker が (ga), and the i-adjective 鋭い (surudoi, sharp/keen). It functions as a descriptive predicate or can modify nouns directly as a relative clause (e.g., 勘が鋭い人). The adjective 鋭い conjugates normally according to standard i-adjective inflection patterns.
Sample sentences
彼女は勘が鋭いので、隠し事をしてもすぐにバレてしまう。
She has sharp intuition, so even if you try to hide something from her, she finds out right away.
勘が鋭い刑事は、現場のわずかな違和感を見逃さなかった。
The intuitive detective did not overlook the slightest anomaly at the crime scene.
どうして分かったの？本当に勘が鋭いね。
How did you know? You really have incredible intuition.
Quick facts
Mnemonic
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Example
彼女は勘が鋭いので、隠し事をしてもすぐにバレてしまう。
She has sharp intuition, so even if you try to hide something from her, she finds out right away.
勘が鋭い刑事は、現場のわずかな違和感を見逃さなかった。
The intuitive detective did not overlook the slightest anomaly at the crime scene.
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