75052
> 日頃は冷静な乾さんの裡から、ちらりと激情が見えたようだった。

What is the reading and meaning of 裡 here? I found the readings うち and うら in
Jisho.org
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2020-03-17T00:57:55.913
75049
2020-03-17T06:00:27.850
902
question
meaning kanji readings
Reading/meaning of 裡
According to [ふりがな文庫](https://furigana.info/w/%E8%A3%A1), the most frequent
kun-reading is うち. うち is mentioned in [this
entry](https://dictionary.goo.ne.jp/word/%E3%81%86%E3%81%A1/#jn-19186), but うら
is not mentioned in [this
entry](https://dictionary.goo.ne.jp/word/%E3%81%86%E3%82%89/#jn-20650).
However うち, うら and なか equally make sense in your sentence, and I don't think
it possible to determine the reading in one way without furigana. They are
fairly rare kun-readings, anyway. FWIW, I knew only the on-reading, り, as in
秘密裡.
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2020-03-17T06:00:27.850
75052
2020-03-17T06:00:27.850
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answer