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.
However, their shindig is turned upside down with the appearance of Irish vampire Remmick (Jack O’Connell) who attacks the partygoers, turning them into new bloodsuckers and adding to his army. Brian Truitt, USA Today, 20 Apr. 2025 Isabelle Huppert stars as Erika, the titular piano teacher, who starts up an affair with one of her students and then watches her life turn upside down. Brian Tallerico, Vulture, 18 Apr. 2025 The ferris wheel is shown upside down and lit up in neon colors in support of the film. Michael Saponara, Billboard, 18 Apr. 2025 This past January, the tech world was turned upside down: A new AI model that matched the performance of OpenAI’s o1 model at a fraction of the cost caught the world’s attention. Gary Drenik, Forbes.com, 17 Apr. 2025 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 22 Apr. 2025.

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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