con·​stan·​cy | \ ˈkän(t)-stən(t)-sē How to pronounce constancy (audio) \
plural constancies

Definition of constancy

1a : steadfastness of mind under duress : fortitude
2 : a state of being constant or unchanging

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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 The lifers’ constancy is useful in a house where the occupants change every four to eight years. Susannah Jacob, The New Yorker, "The Secret Life of the White House," 24 Feb. 2021 As a major-league starter, Mike Fiers models constancy. Matt Kawahara, San Francisco Chronicle, "How will A's handle pitching workloads in return to a 162-game season?," 19 Feb. 2021 And weigh that again against the inconvenience that name changes create for households and businesses, and against the human desire for constancy. Editorial Board, Star Tribune, "The ways of 'woke'," 11 Feb. 2021 Starting March 11, when the NBA hit pause on its season, 2020 upended sports constancy. Matt Kawahara,, "‘One freaking weird year’ revealed what sports is like without human closeness," 2 Jan. 2021 The pears, the constancy of the fruit tree, reassured Lentine after the existential jolt of 9/11. Washington Post, "The symbiotic relationship between poets and the garden," 16 Dec. 2020 Pantone's 2020 pick, Classic Blue, was meant to represent stability, constancy and connection. Hannah Yasharoff, USA TODAY, "Ultimate Gray, Illuminating are both Pantone's 2021 Color of the Year: 'Essential to the human spirit'," 10 Dec. 2020 In the turbulent and often thankless media environment that exists today, Andrew Walther stood out for his constancy, his clarity, and his confidence. Nr Symposium, National Review, "Men of Heroic Virtue Can Live in the World Today — Andrew Walther Did," 6 Dec. 2020 Americans desperately needed and wanted a leader of steadiness, sobriety, gravity, empathy, constancy, and cool, informed, authoritative competence to guide them in such a time. Dan Mclaughlin, National Review, "I Was ‘Never Trump’ in 2016. I’m Still a Conservative. Here’s How I’m Voting," 2 Nov. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'constancy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of constancy

15th century, in the meaning defined at sense 1a

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Time Traveler for constancy

Time Traveler

The first known use of constancy was in the 15th century

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Statistics for constancy

Last Updated

1 Mar 2021

Cite this Entry

“Constancy.” Dictionary, Merriam-Webster, Accessed 2 Mar. 2021.

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More Definitions for constancy



English Language Learners Definition of constancy

: the quality of staying the same : lack of change
: the quality of being loyal to a person or belief


con·​stan·​cy | \ ˈkän-stən-sē How to pronounce constancy (audio) \

Kids Definition of constancy

: firmness and loyalty in beliefs or personal relationships

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