воображаемый мир([mainly British, disapproval] If you say that someone is living in cloud-cuckoo-land, you are criticizing them because they think there are no problems and that things will happen exactly as they want them to, when this is obviously not the case.: I was living in cloud-cuckoo-land about my salary expectations.m_rakova)
витать в облаках(Jessica is thinking of starting up a private clinic. She seems to be living in cloud-cuckoo-land – Джессика думает создать частную клинику. Похоже, она витает в облаках; тж. см. la-la land Taras)