不本意|ふほんいfuhon'i[2]nakadaka (mid-high)

1. na-adjective, nounreluctant; unwilling; involuntary; unintentional; unintended; unlooked-for; disappointing
   彼女かのじょは不本意ふほんいながらもそうした。↗

   She did it against her will.

• Related気乗り薄きのりうすNeutralUnenthusiastic, lacking drive before the fact. 「不本意」 instead points to a result or action that is not what one wanted, leaving one chagrined.
• Antonym本意ほんいWrittenOne's original wish or true intention, in written or formal prose; the opposite of 「不本意」, which implies going against that wish.
• Antonym喜んでよろこんでNeutralAdverb meaning 'gladly, willingly'; the direct opposite of doing something 「不本意」, i.e. reluctantly or under protest.

Use 「不本意」 when something happens against your will and you feel chagrined, as in 「不本意な結果」 or 「不本意ながら引き受ける」. For simply lacking enthusiasm beforehand, say 「気乗り薄」. The opposites are 「本意」 and 「喜んで」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 自分じぶんが抱いだいていた本来ほんらいの意志いしとは異ことなること。また、そのようなさま。