さいあく
worst, terrible
The most badly it could possibly have gone, and you got out from under it by a hair. The same sigh さい as 最近, and then ack あく: さいあく.
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Emaki is not affiliated with, or endorsed by, Kaishi 1.5k or its authors. The word, reading and meaning come from the Kaishi 1.5k deck, used with their permission. The mnemonic, the note and the kanji breakdown are original work, published under CC BY-SA 4.0.