忾 (kài): indignation

Meanings

面对侵略者，全国上下同仇敌忾。

Miànduì qīnlüèzhě, quánguó shàngxià tóngchóudíkài.

Faced with the invaders, the whole nation shared a common hatred.

全队同仇敌忾，决心赢下这场比赛。

Quánduì tóngchóudíkài, juéxīn yíng xià zhèchǎng bǐsài.

The team shared a common indignation and resolved to win this match.

usage

忾 survives almost only in 同仇敌忾 ('shared hatred against a common enemy'), describing a group united in indignation.

radical

忄 xīn

heart; feeling

忄 is the left-side form of the heart radical 心. It marks 忾 as an emotion — burning indignation.

phonetic

气 qì

air; breath; anger

气 ('air, anger') lends the sound and a fitting flavor: heart plus 'qi' equals heated, indignant feeling rising against an enemy.

忾 kài