up-and-down
Americanadjective
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moving alternately up and down.
the up-and-down swing of levers; an up-and-down tune.
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having an uneven surface.
up-and-down countryside.
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changeable.
up-and-down luck.
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perpendicular or nearly so.
a straight up-and-down hillside.
adjective
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moving, executed, or formed alternately upwards and downwards
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very steep; vertical
adverb
Other Word Forms
Etymology
Origin of up-and-down
First recorded in 1610–20
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The hiring rate has shown a similar up-and-down pattern.
From MarketWatch ● Aug. 4, 2026
Oil futures settled modestly higher in an up-and-down session.
From The Wall Street Journal ● Jun. 17, 2026
He said it has been an "up-and-down" season for Celtic but his team are still very much in the mix after their win at Fir Park.
From BBC ● May 14, 2026
It has been an up-and-down season for Ayton, but Lakers coach JJ Redick said he is confident the 7-foot center can be more consistent moving forward.
From Los Angeles Times ● Mar. 8, 2026
Deep down, he knew what was really bugging him and why he was in such an up-and-down mood.
From "Eleven" by Tom Rogers
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.