Synonyms of invariant

invariant

adjective

(ˌ)in-ˈver-ē-ənt 

as in unchanging

not varying

an invariant value

Synonyms & Similar Words

• unchanging
• steady
• unchangeable
• uniform
• unvarying
• invariable
• fixed
• immutable
• even
• undeviating
• unwavering
• unalterable
• set

Antonyms & Near Antonyms

• changing
• nonuniform
• unsteady
• varying
• deviating

Example Sentences

Recent Examples of invariant

This development follows a generally invariant sequence validated across cultures. — Aurelien Mangano, Forbes.com, 6 Feb. 2026

To build the therapy, researchers took human stem cells and turned them into a special type of immune cell called an invariant natural killer T cell (NKT cell). — Khloe Quill, FOXNews.com, 1 Dec. 2025

But interestingly, quantum mechanics is often assumed to be invariant under time reversal. — Manon Bischoff, Scientific American, 4 June 2025

The spectrum of initial density fluctuations should be almost, but not perfectly, scale-invariant, and instead will be just a few percent larger on large cosmic scales than small ones. — Big Think, 11 Mar. 2025