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reluctant; unwilling; involuntary; unintentional; unintended; unlooked-for; disappointing
試合は不本意な結果に終わった。
The game ended with a disappointing result.
彼は不本意ながらその転勤を承諾した。
He reluctantly agreed to the transfer.
彼女は不本意な降格を受け入れざるを得なかった。
She had no choice but to accept the unwilling demotion.