# upside down

> English word · Adverb · IPA /ˌʌpsaɪd ˈdaʊn/

## Definitions
1. Inverted, so that the top is now at the bottom.
2. In great disorder.

## Etymology
From Middle English up sid doun, an alteration of earlier upsadowne, upsedowne, up-so-doun (“upside down”), equivalent to up + so + down, literally “up as down”.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/upside-down