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# invariable

[in-vair-ee-uh-buh l] /ɪnˈvɛər i ə bəl/
1.
not variable; not changing or capable of being changed; static or constant.
noun
2.
something that is invariable; a constant.
Origin of invariable
late Middle English
1400-1450
late Middle English word dating back to 1400-50; See origin at in-3, variable
Related forms
invariability, invariableness, noun
Synonyms
1. unalterable, unchanging, changeless, invariant, unvarying, immutable.
Antonyms
1. changing.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for invariability
Historical Examples
• These manœuvres are repeated with a striking degree of invariability.

George W. Peckham
• It is founded on the absolute integrity and invariability of nature.

Robert G. Ingersoll
• This object is attained by the invariability of the adjectives, and especially by composition.

Wentworth Webster
• The invariability of the belief is with him the real guarantee.

John Stuart Mill
• By the growth of a practical feeling of the invariability of natural laws.

John-Stuart Mill
• The combination of invariability and reversibility in the Peirce pendulums was an innovation for relative determinations.

• The permanence of organic forms is altogether dependent on the invariability of the material conditions under which they live.

John William Draper
• The invariability of nature, as he conceived it, was true of the emotions and the will, as well as of the intellect.

J. B. Bury
• The name was chosen as expressing the invariability of its dimensions with heat.

• And science does not rest for us on sure foundations unless the invariability of the laws of nature is admitted.

J. B. Bury
British Dictionary definitions for invariability

## invariable

/ɪnˈvɛərɪəbəl/
1.
not subject to alteration; unchanging
noun
2.
a mathematical quantity having an unchanging value; a constant
Derived Forms
invariability, invariableness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for invariability
n.

1640s, from invariable + -ity.

## invariable

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
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### Word Value for invariability

0
24
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