How to Write 忾 (kài) — Meaning “anger; hatred; indignation”

Imagine your heart (忄) is filled with hot air (气) from anger, like steam rising off a kettle. The sound kài can help you remember "cry out" — when you feel indignation, you might shout or sigh, matching the energy of 气.

Write the vertical stroke for 忄 first, then the two dots — the left dot is slightly higher than the right dot. The right side 气 must be written with its three horizontal strokes spaced evenly, and the final hook (乚) should curve smoothly without being too long.

忾 (kài) means anger or indignation, while 忉 (dāo) means sorrow or worry, and 忏 (chàn) means to repent or confess. Visually, 忉 has 刀 (knife) on the right instead of 气, and 忏 has 千 (thousand) — so the right-side component is the key to telling them apart.

忾 appears almost exclusively in the idiom 同仇敌忾 (tóng chóu dí kài), meaning 'to share a common hatred for the enemy' — often used in historical or patriotic contexts. It is not common in daily speech, but the idiom is a classic way to express unity against a shared foe, showing the character's strong, collective emotion.

Common words containing 忾 include: 同仇敌忾 (tóng chóu dí kài) — To share a common hatred for the enemy; 愤忾 (fèn kài) — Indignation; anger.; 敌忾 (dí kài) — Enmity towards the enemy.