hung1 zung1 lau4 gok3空中樓閣空中楼阁

Jyutpinghung1 zung1 lau4 gok3
Yalehūng jūng làuh gok

Definition

Castles in the air; unrealistic, utopian, or imaginary plans with no foundation.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector