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.
The vehicle flipped and landed upside down in the ravine below. Christa Swanson, CBS News, 23 Mar. 2026 The manufacturing leads show me how quality check software monitors to catch fluke pages printed upside down or missing, but there are sometimes one or two that will slip through the system. Clare Mulroy, USA Today, 22 Mar. 2026 Now, for a final example of willful blindness about financial realities, consider the situation of National Guard or other reservists who once again face having their lives turned upside down by a call to active duty. Edward Lotterman, Twin Cities, 22 Mar. 2026 Most people never expect a knock on the door from a police officer to flip their life upside down. Kurt Knutsson, FOXNews.com, 18 Mar. 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 23 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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