castle in the air

英語（米国） (en-US) 英語（イギリス） (en-GB)

IPA（発音記号）

/ˈkɑːs(ə)l ɪn ðiː ˈɛə/

名詞

慣用表現

(idiomatic) A desire, idea, or plan that is unlikely to ever be realized; a visionary project or scheme; a daydream, an idle fancy, a near impossibility.

日本語の意味

実現が極めて困難な、非現実的な幻想や夢、理想的な計画。 / 根拠がなく、実現性の低い空想や妄想

英語の意味

(idiomatic) A desire, idea, or plan that is unlikely to ever be realized; a visionary project or scheme; a daydream, an idle fancy, a near impossibility.

このボタンはなに？

He spent years sketching plans for a castle in the air, never once worrying about the cost or feasibility.

彼は何年も夢物語の計画を練り、費用や実現可能性を一度も気にしなかった。

詳細

意味（1）

(idiomatic) A desire, idea, or plan that is unlikely to ever be realized; a visionary project or scheme; a daydream, an idle fancy, a near impossibility.

Many times ſuch men when they come to themſelves, tell ſtrange things of Heauen and Hell, what viſions they haue ſeene; […] The like effects almost are to bee ſeene in ſuch as are awake: How many Chimæras, Anticks, golden mountaines, and Caſtles in the Aire doe they build vnto themſelves?

詳細

castles in the air （ plural ）