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Synonyms

unalterable

American  
[uhn-awl-ter-uh-buhl] / ʌnˈɔl tər ə bəl /

adjective

  1. not capable of being altered, changed, or modified.


unalterable British  
/ ʌnˈɔːltərəbəl, -ˈɔːltrəbəl /

adjective

  1. (of a condition, truth, etc) unable to be changed or altered

"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

Other Word Forms

Etymology

Origin of unalterable

First recorded in 1610–15; un- 1 + alterable

Explanation

You take your dress to the tailor to be altered. He tells you he can't alter it. The dress is unalterable. Something unalterable cannot be changed. Take the prefix un-, meaning "not". Add it to the word alter, meaning "change." Tack on the suffix -able, meaning "possible." The result? Unalterable, "impossible to change." The things you've done in the past are unalterable. The only things you have the power to change are the things you're doing right now or that you will do in the future. How can you alter things that haven't happened yet? Good question. For all we know, they're unalterable too.

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Vocabulary lists containing unalterable

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.

And it seems there is no such plan; given the logistical problems, as well as the unalterable geography, any such plan could well be impossible.

From Slate • Apr. 8, 2024

Blanca Alfaro, the head of the Guatemalan electoral commission, responded by calling the result "unalterable" and insisted Mr Arévalo would be sworn in next month as planned.

From BBC • Dec. 8, 2023

Cryptocurrency is a type of digital money secured via encryption in a publicly viewable and purportedly unalterable way.

From Seattle Times • Sep. 15, 2022

Those differences in belief and behavior can be traced both to some mostly unalterable biological differences and some fast-changing attitudes about who can do what now.

From Washington Post • Nov. 12, 2021

Scientific knowledge is not, in reality, unalterable truth, even if it appears to be.

From "The Invention of Science" by David Wootton

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