invariable

[in-vair-ee-uh-buhl]
See more synonyms for invariable on Thesaurus.com
noun
  1. something that is invariable; a constant.

Origin of invariable

late Middle English word dating back to 1400–50; see origin at in-3, variable
Related formsin·var·i·a·bil·i·ty, in·var·i·a·ble·ness, nounin·var·i·a·bly, adverb

Synonyms for invariable

See more synonyms for on Thesaurus.com

Antonyms for invariable

1. changing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


Examples from the Web for invariability

Historical Examples of invariability


British Dictionary definitions for invariability

invariable

adjective
  1. not subject to alteration; unchanging
noun
  1. a mathematical quantity having an unchanging value; a constant
Derived Formsinvariability or invariableness, noun
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
n.

1640s, from invariable + -ity.

invariable

adj.

early 15c., from Old French invariable (14c.) and directly from Medieval Latin invariabilis, from in- "not, opposite of" (see in- (1)) + variabilis (see variable). Related: Invariably.

Online Etymology Dictionary, © 2010 Douglas Harper