- castle in the air
- Synonyms and related words:Xanadu, airy nothing, autism, bubble, castle in Spain, chimera, daydream, deception, deluded belief, delusion, dereism, dream, dream vision, dreamland, dreamworld, false belief, ignis fatuus, illusion, misbelief, misconception, pipe dream, self-deceit, self-deception, self-delusion, trick, trip, vapor, wrong impression
Moby Thesaurus. Grady Ward. 1996.