- not variable; not changing or capable of being changed; static or constant.
- something that is invariable; a constant.
Origin of invariable
SynonymsSee more synonyms on Thesaurus.com
1. unalterable, unchanging, changeless, invariant, unvarying, immutable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for invariability
These manœuvres are repeated with a striking degree of invariability.Wasps
George W. Peckham
It is founded on the absolute integrity and invariability of nature.The Works of Robert G. Ingersoll, Vol. 7 (of 12)
Robert G. Ingersoll
This object is attained by the invariability of the adjectives, and especially by composition.Basque Legends
The invariability of the belief is with him the real guarantee.A System of Logic: Ratiocinative and Inductive
John Stuart Mill
By the growth of a practical feeling of the invariability of natural laws.August Comte and Positivism
- not subject to alteration; unchanging
- a mathematical quantity having an unchanging value; a constant
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
Word Origin and History for invariability
Online Etymology Dictionary, © 2010 Douglas Harper