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self-condemnation; self-reproach; self-accusation
自責の念に駆られて夜も眠れなかった。
Driven by self-reproach, I could not sleep at night.
失敗した同僚を自責に追い込まぬよう配慮した。
I was careful not to drive my failed colleague into self-blame.
自責の涙を流しながら謝罪の言葉を述べた。
He spoke words of apology while shedding tears of self-reproach.