Synonyms for upside-down

Adjective

1. inverted, upside-down, turned (vs. unturned)

usage: being in such a position that top and bottom are reversed; "a quotation mark is sometimes called an inverted comma"; "an upside-down cake"

Adverb

1. upside down

usage: in an inverted manner; "the box was lying on the floor upside down"