noun Date: 1942 a feeling of altered reality (as that occurring in schizophrenia or in some drug reactions) in which one's surroundings appear unreal or unfamiliar
DEREALIZATION
Meaning of DEREALIZATION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012