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.
Grace & Frankie Jane Fonda (Grace) and Lily Tomlin (Frankie) star as two women whose lives are turned upside down when their husbands come out as gay and leave them for each other. Dana Feldman, Forbes.com, 15 Aug. 2025 Written and directed by Natasha Kermani, The Dreadful follows outsider Anne (Turner) as her life is turned upside down after the arrival of a mysterious man from her past. EW.com, 15 Aug. 2025 Rescue teams arrived on the scene at about 9 p.m. and found a truck that had landed upside down with its roof striking a rock directly upon impact, according to the outlet. Kimberlee Speakman, People.com, 13 Aug. 2025 The story follows Billy 5000, a teenager in suburban Florida desperately trying to make $5,000 when his winter break is turned upside down by the arrival of a bizarre creature from another world. Jill Goldsmith, Deadline, 10 Aug. 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 20 Aug. 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

Last Updated: - Updated example sentences
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