淒
セイ, サイ, すご.む, さむ.い, すご.い, すさ.まじい

bitter cold, miserable, dreary

JLPT0 G13 S0 F5000

As per 妻# (aligned) + 水 water → aligned torrents/cascades of chilly water → *chilling*; (terribly) *cold*; *dreadful*.

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