upside down

adverb

up·​side down ˈəp-ˌsīd-ˈdau̇n How to pronounce upside down (audio)
1
: in such a way that the upper and the lower parts are reversed in position
2
: in or into great disorder
turned their world upside down
upside-down adjective

Examples of upside down in a Sentence

You hung the picture upside down! To remove the plant, turn the pot upside down and tap gently on the bottom to loosen it. The baby was holding the book upside down.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Remove all knives and turn the block upside down to shake out debris. Jessica Safavimehr, Southern Living, 27 Feb. 2026 With his GoPro rolling, a skier at Palisades Tahoe and a friend helped rescue another skier buried upside down in snow on a run near the famous KT-22 lift after a blizzard dumped more than 100 inches of snow at the California resort. David Caraccio, Sacbee.com, 26 Feb. 2026 No idea was discarded in the test kitchen, which even toyed with placing the burger upside down. Vanessa Yurkevich, CNN Money, 26 Feb. 2026 The crossover begins with the 9-1-1, Season 9 episode ‘Dads and Cads’, in which Maddie (Jennifer Love Hewitt) and Buck are blindsided by some unexpected news that turns their world upside down. Glenn Garner, Deadline, 26 Feb. 2026 See All Example Sentences for upside down

Word History

Etymology

alteration of Middle English up so doun, from up + so + doun down

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of upside down was in the 15th century

Browse Nearby Words

Cite this Entry

“Upside down.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upside%20down. Accessed 5 Mar. 2026.

Kids Definition

upside down

adverb
up·​side down ˌəp-ˌsīd-ˈdau̇n How to pronounce upside down (audio)
1
: with the upper part underneath and the lower part on top
2
: in or into great disorder
upside-down adjective

Legal Definition

upside down

adjective
: underwater
upside down mortgages
upside down homes
upside down homeowners

More from Merriam-Webster on upside down

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