01
硬い
かたい
hard, stiff
Meanings
- stiff
- hard
Readings
Onyomi
- コウ
Kunyomi
- かた.い
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Useful words
02
硬貨
こうか
coin
03
強硬
きょうこう
firm, tough
04
硬度
こうど
hardness
05
硬直
こうちょく
stiffness, rigidity
06
硬化
こうか
hardening
Compare Kanji
01柔Pair91%tender, weakness柔 gives the soft opposite, making the hard meaning of 硬 stand out.02軟Pair90%softSoftness in 軟 is the practical contrast learners need beside 硬.03石Component82%stoneThe stone side in 硬 explains why the kanji feels solid and hard.04岩Meaning72%boulder, rockRock and hardness are easy to connect; 岩 gives a natural material image.05砕Component67%smash, break砕 shares the stone side but shows what happens when hard material breaks.06更Component59%grow late, night watch更 is tucked after the stone side in 硬, a compact cue.