unchanged
Britishadjective
Explanation
If something is unchanged, it's exactly the same as it was earlier. If your grandmother's home is unchanged, it still has the same paisley curtains and orange shag carpeting she purchased in the 1970s. When you visit an old friend you haven't seen in years and find him a foot taller and sporting a new beard, you might say, "You've changed!" If, however, your friend looks and acts in exactly the same way he did in the past, he's unchanged. Because many things change constantly, it can be a pleasant surprise to find unchanged things, from landscapes to people to your dad's famous apple pie.
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.
A central concept is entropy, which describes how many different microscopic arrangements a system can have while appearing unchanged from the outside.
From Science Daily ● Nov. 3, 2026
They can preserve materials largely unchanged for about 4.5 billion years.
From Science Daily ● Nov. 3, 2026
Once Binance replenishes its hot wallets with its own reserves, users’ crypto holdings will be unchanged, Binance said.
From The Wall Street Journal ● Oct. 30, 2026
In a speech at Davidson College, Logan, who voted on Wednesday to keep rates unchanged, said the Fed needs to implement “at least” two more quarter-point hikes.
From MarketWatch ● Oct. 30, 2026
In fact, we can remove an infinite number of elements from the set of whole numbers—we can delete the odd numbers, for example—and the size of the set remains unchanged.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.