invariable

American  

[in-vair-ee-uh-buhl] / ɪnˈvɛər i ə bəl /

adjective

1. not variable; not changing or capable of being changed; static or constant.

   Synonyms:

   invariant, changeless, unchanging, unalterable, immutable, unvarying

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noun

1. something that is invariable; a constant.

invariable British  

/ ɪnˈvɛərɪəbəl /

adjective

1. not subject to alteration; unchanging

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noun

1. a mathematical quantity having an unchanging value; a constant

Other Word Forms

• invariability noun
• invariableness noun
• invariably adverb

Etymology

Origin of invariable

late Middle English word dating back to 1400–50; in- ³, variable

Example Sentences

When reporters asked if he had the stamina for another campaign, his invariable response was: “Watch me.”

From Los Angeles Times • Jul. 22, 2024

“The ball will always find you” is not, of course, an invariable truth.

From Seattle Times • Sep. 15, 2023

As I got to know Lipska, we talked about running a lot, about the invariable torture of the first few miles, and about what makes people keep going.

From Washington Post • Aug. 3, 2018

The names on the list are invariable, so if you are in the North Pacific, every sixth year the first named storm will be named, for example, Adrian.

From Slate • Jul. 19, 2017

This part of the process is invariable and immortal.

From "Travels with Charley in Search of America" by John Steinbeck