unchangeable
Britishadjective
Explanation
Anything that doesn't alter or shift over time is unchangeable, like the unchangeable rules at your school or your unchangeable conviction that pistachio is the tastiest flavor of ice cream. Things that can't be changed are unchangeable, and this adjective tends to be used for describing really big ideas, like the unchangeable laws of the universe or the unchangeable nature of love. You can use it for anything that seems steadfast, firm, or permanent, like your unchangeable affection for your best friend or your sister's unchangeable insistence that she has to ride in the front seat.
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.
Joint wills are complicated and, unlike trusts that become irrevocable upon one spouse’s death, are not necessarily unchangeable after one spouse dies.
From MarketWatch • Feb. 23, 2026
A fixed mindset -- the belief that intelligence and ability are unchangeable traits -- is also connected to impostor feelings.
From Science Daily • Jan. 5, 2026
What are the facts of this scene that are unchangeable?
From The Wall Street Journal • Dec. 24, 2025
And I thought: It needs to be strong and unchangeable.
From Los Angeles Times • Sep. 13, 2023
“If these are your last, unchangeable proposals,” he told Kissinger, “settlement is impossible.”
From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin
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.
