[ in-vair-ee-uh-buhl ]
See synonyms for: invariableinvariabilityinvariably on

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

  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

Other words for invariable

Opposites for invariable

Other words from invariable

  • in·var·i·a·bil·i·ty, in·var·i·a·ble·ness, noun
  • in·var·i·a·bly, adverb

Words Nearby invariable Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use invariable in a sentence

British Dictionary definitions for invariable


/ (ɪnˈvɛərɪəbəl) /

  1. not subject to alteration; unchanging

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

Derived forms of invariable

  • invariability 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