upside-down ['ʌpsaɪd'daʊn]

以下由轻松背单词网站提供

adj.颠倒的，混乱的；adv.颠倒，倒置

having the part which is usually at the top turned to be at the bottom

They left the room upside-down. 他们把房间弄得乱七八糟。
The world had turned upside-down. 整个世界陷入一片混乱之中。