IN-VARIABLE Synonyms: 42 Similar and Opposite Words

invariable

adjective

(ˌ)in-ˈver-ē-ə-bəl

Definition of invariable

as in unchangeable

not capable of changing or being changed an invariable interest rate

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of invariable Exoplanets with orbits tilted with respect to their invariable plane could disrupt the rest of their system. — Doris Elin Urrutia, Space.com, 8 June 2026 Among other things, Marx is invoking the algebraic distinction between known and invariable (constant) and unknown (variable) values. — Literary Hub, 22 Sep. 2025 God will always be the sole source of each one’s invariable, operable, ceaseless good. — Jan Keeler Vincent, Christian Science Monitor, 15 Aug. 2025

Recent Examples of Synonyms for invariable

Adjective

Families can also create irrevocable trusts to remove countable assets towards Medicaid qualification, but remember, irrevocable trusts are usually unchangeable.

— Medora Lee, USA Today, 9 May 2026
Policies Vary by Location As generous as Aldi’s approach can be, there are a few places where the rules are solid and unchangeable.

— Jessica Safavimehr, Southern Living, 22 Apr. 2026

Definition of unchangeable

Adjective

Having lived and worked across multiple countries throughout his career, Midi Z no longer defines home as a fixed place.

— Lin Ying-Hsuan, Variety, 25 July 2026
Investment options Stocks, equities, ETFs, mutual funds, fixed income, alternative investments like private equity and hedge funds.

— Dan Avery, CNBC, 17 July 2026

Definition of fixed

Adjective

On just one unchanging set, an old-time concert hall designed by Rachel Hauck and made appropriately ominous, a tiny ensemble enacts a whole Greek tragedy of love and sacrifice that goes from the land of the living to the underworld and back.

— Wilson Chapman, IndieWire, 22 July 2026
There is a fallacy in thinking of languages as brute and unchanging facts, laid out distinctly like elements in the periodic table.

— Nikhil Krishnan, New Yorker, 20 July 2026

Definition of unchanging

Browse Nearby Words

invariability

invariable

invariably

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“Invariable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invariable. Accessed 27 Jul. 2026.

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Synonyms of invariable

adjective

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