castle in the air


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  • noun

Synonyms for castle in the air

a fantastic, impracticable plan or desire

Synonyms for castle in the air

absentminded dreaming while awake

References in classic literature ?
that enchanted castle in the air, the sight whereof so
A castle in the air," cried Katerina Ivanovna, her laugh ending in a cough.
It consisted partly of a gold mine in Eldorado, and of ten thousand shares in a broken bubble, and of half a million acres of vineyard at the North Pole, and of a castle in the air, and a chateau in Spain, together with all the rents and income therefrom accruing.