Synonyms of upside downnext
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

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.
When a world gets turned upside down, the people inside follow suit. — Anthony Lane, New Yorker, 28 Sep. 2026 The foreign minister of Iceland, Thorgerdur Katrín Gunnarsdóttir, used part of her time on the world stage Saturday to turn Israeli Prime Minister Benjamin Netanyahu's words on Friday upside down. — ABC News, 26 Sep. 2026 The first step is to blow-dry your hair upside down to add body. — María Diez, Glamour, 26 Sep. 2026 Pineapple cake isn’t the only thing that should be turned upside down. — Jennifer Prince, Southern Living, 25 Sep. 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 Oct. 2026.

Kids Definition

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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