upside-down
UK: ˌʌp.saɪd ˈdaʊn | US: ˌʌp.saɪd ˈdaʊn
adj. in a position where the upper part is where the lower part should be; inverted
adj. (figurative) in a state of confusion or disorder
adv. in an inverted or reversed position
The word "upside-down" originated in Middle English as a compound of "up," "side," and "down," literally describing something with its upper side turned downward. The term evolved from the Old English spatial concepts of "up" (opposite of "down") and "side" (a surface or direction), combining to emphasize inversion. Over time, it gained figurative use to describe disarray or reversal of normal order.
The painting was hung upside-down by mistake.
After the earthquake, the furniture lay upside-down in the room.
His world turned upside-down when he lost his job.
The toddler held the book upside-down while pretending to read.
The cake collapsed and landed upside-down on the floor.