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.
In it, the moon is oriented upside down, with its South Pole facing upward and parts of its far side visible, according to the agency's description. Emily Mae Czachor, CBS News, 6 Apr. 2026 Remove it from your bed frame, flip it upside down and slide it back on its base. Alora Bopray, USA Today, 4 Apr. 2026 That’s not a reason to turn your whole business upside down. Charlie Warzel, The Atlantic, 3 Apr. 2026 Rodrigo announced the news by wiping her Instagram feed and sharing a photo of the album cover, which shows her swinging upside down in a baby pink dress. Katie Simons, Los Angeles Times, 2 Apr. 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 6 Apr. 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

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