constancy

noun

con·​stan·​cy ˈkän(t)-stən(t)-sē How to pronounce constancy (audio)
plural constancies
Synonyms of constancynext
1
a
: steadfastness of mind under duress : fortitude
2
: a state of being constant or unchanging

Examples of constancy in a Sentence

the constancy of the Earth's rotation the mistaken notion that there is constancy in language—words do indeed change their meanings over time
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His constancy has been really good and his leadership. Matt Schooley, CBS News, 12 Jan. 2026 Shared rituals that marked the seasons with reassuring constancy. Dai Sugano, Mercury News, 30 Dec. 2025 For a nation where the traditional political order – dominated by the Conservatives and Labour – has had the constancy of the cliffs of Dover, everything appears chaotically uncertain. Mark Sappenfield, Christian Science Monitor, 21 Dec. 2025 Real progress in the region, real justice and stability, will require healing, constancy, imagination, and endurance—day after day, year after year, long past any one Administration. David Remnick, New Yorker, 19 Oct. 2025 See All Example Sentences for constancy

Word History

First Known Use

1523, in the meaning defined at sense 1a

Time Traveler
The first known use of constancy was in 1523

Browse Nearby Words

Cite this Entry

“Constancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/constancy. Accessed 27 Jan. 2026.

Kids Definition

constancy

noun
con·​stan·​cy ˈkän(t)-stən-sē How to pronounce constancy (audio)
plural constancies
1
: firmness and loyalty in one's beliefs or personal relationships
2
: freedom from change

More from Merriam-Webster on constancy

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!