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Synonyms

unaltered

American  
[uhn-awl-terd] / ʌnˈɔl tərd /

adjective

  1. not altered, changed, or modified.

    We approved the unaltered designs.

  2. (of an animal) not neutered.

unaltered British  
/ ʌnˈɔːltəd /

adjective

  1. not altered; unchanged

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of unaltered

First recorded in 1545–55; un- 1 + alter + -ed 2

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.

Higher rates on specific products such as steel and aluminum remain unaltered by the Supreme Court decision.

From The Wall Street Journal • Feb. 25, 2026

But the fundamentals, the catalysts that drove events towards this week's crescendo, remain unaltered.

From BBC • Feb. 10, 2026

In 2012, these largely unaltered rivers accounted for 30 per cent of the region's waterways.

From Barron's • Jan. 21, 2026

They found that the folding of milk proteins was unaltered by the presence of caffeine in these beverages, even in the cappuccino, which contained components extracted from the coffee grounds, such as chlorogenic acid.

From Science Daily • Jun. 6, 2024

They digested the proteins with various enzymes; the activity remained unaltered.

From "The Gene" by Siddhartha Mukherjee

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.