Moderate as in dream A fanciful or unrealistic idea or project, similar to being in a fool's paradise. Clear All
3 Example Sentences Showcasing the Meaning of 'Castle In The Air'
Sarah's plan to finish her novel in a day was a castle in the air.
The promise of everlasting happiness through a single purchase was nothing but a castle in the air.
The inventor spent years working on a groundbreaking idea, which some considered a mere castle in the air.
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