noun
A garden design where the planting area is lower than the surrounding ground level. The term is a direct loan from English, sometimes also referred to as サンクンガーデン.
from English sunk garden
See also: サンクンガーデン
このホテルの中庭にはサンクガーデンがあって、落ち着いた雰囲気です。
This hotel has a sunken garden in its courtyard, creating a calm atmosphere.