鋭い
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Base i-adjective form ending in 『い』. Describes physical sharpness or metaphorical keenness.
Theme
User and their colleague Akira are discussing a presentation at work, focusing on the clarity of arguments.
鋭い
するどい
pointed / sharp
Core Language Building BlocksCore Adjectives
Memory Hook
Imagine a sharp knife with a pointed tip. You touch it and say, 『鋭い！』 (surudoi, 'sharp / Pointed'). 'Suru-doi' sounds like 'sure do it' — a sharp tool sure does cut!
Cultural Note
In Japanese, 『鋭い』 (surudoi) is often used to describe sharp objects like knives or pencils, but it can also metaphorically describe keen senses or intelligence, such as a sharp mind or sharp eyesight.
Forms
Base: 鋭いBase i-adjective form ending in 『い』. Describes physical sharpness or metaphorical keenness.
Negative: 鋭くないDrop 『い』 → add 『くない』 (kunai, negative) → 『鋭くない』 (surudokunai).
Past: 鋭かったDrop 『い』 → add 『かった』 (katta, past) → 『鋭かった』 (surudokatta).
Adverbial: 鋭くDrop 『い』 → add 『く』 (ku, adverbial) → 『鋭く』 (surudoku).
Comparative: より鋭いComparative formed with modifier 『より』 (yori, 'more than') + base adjective.
Superlative: 一番鋭いSuperlative formed with 『一番』 (ichiban, 'number one / Most') + adjective.