meaningless, foot race
愡 is a rare kanji with two seemingly unrelated meanings: 'meaningless' and 'foot race'. The connection between these senses is unclear, so treat them as separate applications without a single conceptual center.
The historical origin of 愡 is uncertain. It combines the heart radical 忄 with 怱, but the role of 怱 in this character is not clearly established.
The heart radical 忄 suggests an emotional state, but the right side 怱 is obscure. For 'meaningless', imagine a heart so confused it finds everything pointless. For 'foot race', picture a heart racing during a sprint.
For ソウ, imagine a meaningless foot race where everyone runs in slow motion: slow -> ソウ, and the race feels pointless.
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