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 genre that Campbell shaped so profoundly has become a vital contemporary force, preparing its audience to adapt to the constancy of change and anticipating techno-cultural developments. Michael Saler, WSJ, "It Came From the Future," 18 Oct. 2018 The river itself was a standard-issue metaphor of time’s ungraspable flux and constancy. Wells Tower, Outside Online, "Wells Tower on His First Kiss," 11 July 2018 And then, of course, there’s swimmer’s ear, which can plague even the casual watergoer, and hypothermia from the springs’ 72-degree constancy. Sarah Scoles, Washington Post, "These ‘mermaids’ dance underwater for half an hour at a time," 17 June 2018 The constancy of the message begins to sway Nugget's belief in the goodness of her friend. Denise Coffey, Courant Community, "Ashford, Eastford Students Delighted With "Nugget And Fang" Production," 12 June 2018 The taller figure, an adult woman shepherding a child along her path, represents nature, in all its constancy and grace. Ryan P. Smith, Smithsonian, "One of These Five Innovative Memorials Will Soon Honor Native American Veterans," 11 May 2018 That certainly slowed his development, and with the constancy of games in the NBA schedule, practice is far from ideal for a rookie to catch up. Rick Bonnell, charlotteobserver, "Time for the Charlotte Hornets to figure out what Malik Monk has and lacks | Charlotte Observer," 6 Mar. 2018 In my personal life, the mesmerizing constancy of the surf brings peace. Michael Smolens,, "Does 'blue mind' science explain why we love the ocean?," 11 Apr. 2018 Much of the news out of Washington involves turnover among the Trump staff and lack of constancy in Mr. Trump’s personal history. James Freeman, WSJ, "Can The Boom Last in Trump Country?," 2 Apr. 2018

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

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

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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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