the quality of being unchanging or unwavering, as in purpose, love, or loyalty; firmness of mind; faithfulness.
uniformity or regularity, as in qualities or conditions; invariableness.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use constancy in a sentence
The Harvard team planned to create an illusion—to put the “con” in color constancy.How These Rothkos Were Restored Without Touching the Canvas | Adam Rogers | May 30, 2021 | The Daily Beast
Since color vision does rely, at least in part, on color constancy, well, that could actually solve some complicated problems.How These Rothkos Were Restored Without Touching the Canvas | Adam Rogers | May 30, 2021 | The Daily Beast
Homeostasis says that living systems resist change and desire constancy above all else.
“The key goal of regulation is not rigid constancy,” writes Sterling.
In its constancy, it became all the more comforting for the legions of fans who turned to “Jeopardy!”Alex Trebek, quintessential quizmaster as ‘Jeopardy!’ host for three decades, dies at 80 | Emily Langer | November 8, 2020 | Washington Post
Well, McConnell made Romney look like an ironman of forthright constancy.
It conveys the constancy and consistency of the alliance, a special relationship.
She left her son with one place to go: in search of a constancy, a definition he had never known.
The preoccupation with “middle class” constancy strikes me as obsessive.
The bad feelings are mainly about values, style and constancy more than policy.
World-weary and sick at heart, they still struggled to sustain each other, and to meet their dreadful fate with heroic constancy.Madame Roland, Makers of History | John S. C. Abbott
Arcite is supposed to have worn white, red, or green; but he did not wear blue, for that was the colour of constancy.Chaucer's Works, Volume 1 (of 7) -- Romaunt of the Rose; Minor Poems | Geoffrey Chaucer
Both here and in the Squieres Tale we find the allusions to Lamech, and to blue as the colour of constancy; see notes to ll.Chaucer's Works, Volume 1 (of 7) -- Romaunt of the Rose; Minor Poems | Geoffrey Chaucer
He was kept a long time in prison, twice racked by order of the council, and every effort was made to shake his constancy.
The constancy and danger of a twenty years' passion is a subject upon which I hardly know how to be serious.Private Letters of Edward Gibbon (1753-1794) Volume 1 (of 2) | Edward Gibbon
British Dictionary definitions for constancy
the quality of having a resolute mind, purpose, or affection; steadfastness
freedom from change or variation; stability
psychol the perceptual phenomenon in which attributes of an object appear to remain the same in a variety of different presentations, e.g., a given object looks roughly the same size regardless of its distance from the observer
ecology the frequency of occurrence of a particular species in sample plots from a plant community
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