INCONSTANCY Synonyms: 45 Similar and Opposite Words

inconstancy

noun

(ˌ)in-ˈkän(t)-stən(t)-sē

Definition of inconstancy

as in infidelity

lack of faithfulness especially to one's husband or wife a wife who was long inured to the chronic inconstancy of her husband

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in fluctuation

the frequent and usually sudden passing from one condition to another the inconstancy of public opinion is such that today's hero may be tomorrow's punching bag

Synonyms & Similar Words

Example Sentences

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.

Recent Examples of inconstancy Scientific and engineering advances don't do well in the face of such wild swings and inconstancy. — Eric Berger, ArsTechnica, 18 Aug. 2025 Europeans, awakened to the danger of American inconstancy, are scrambling to spend trillions more on defense in coming years. — Adam Rasmi, Time, 20 June 2025 Years of naval inconstancy with repair work drove Vigor Industrial—a once vibrant and growing maritime conglomerate—into the welcoming arms of hedge funds, which wasted no time in striping the company of value. — Craig Hooper, Forbes, 20 Feb. 2024 Here, Calabazas appears to be holding a toy windmill in one hand and, in the other, a miniature portrait of a woman, perhaps intended by Velázquez as a commentary on the inconstancy of love. — Washington Post, 22 Feb. 2023 Due to his inconstancy and Angie’s growing attachment, their flimsy relationship operated on a timescale of eras coalescing into matters of historical record. — Hannah Gold, Harper’s Magazine , 26 Oct. 2022 Over the past 20 years, the United States has undermined its own global leadership by inconstancy. — Damon Linker, The Week, 9 June 2021

Recent Examples of Synonyms for inconstancy

Noun

Sure, that sounds ridiculous for a season about rape, infidelity, mass murder, suicide, and society’s ruthless commodification of those very things.

— Alison Foreman, IndieWire, 6 Oct. 2026
The 82-year-old actor writes candidly about infidelity, addiction, his son’s imprisonment and his battle with oral cancer, while reflecting on the costs of a life in show business and his love for California.

— Maddie Connors, Los Angeles Times, 5 Oct. 2026

Definition of infidelity

Noun

Rice University researchers found that the material retains directional spin fluctuations even after conventional magnetic order disappears.

— Aamir Khollam, Interesting Engineering, 3 Oct. 2026
Recent studies have proposed that these fluctuations are not purely random but occur within what is known as a chaotic attractor — a set of possible storm states within which the hurricane can evolve unpredictably.

— Chanh Kieu, Washington Post, 2 Oct. 2026

Definition of fluctuation

Noun

The Royal Family, whose relations with Spencer have long been strained, are said to fear the book could contain numerous bombshells about Charles and Diana’s relationship, which was infamously plagued by adultery and acrimony.

— K.J. Yossman, Variety, 17 Sep. 2026
Its citizens held slaves, some of whom were shackled for committing adultery.

— Boris Kachka, The Atlantic, 4 Sep. 2026

Definition of adultery

Noun

This was because the phase of an oscillation encodes information about how events are structured in time relative to each other.

— Elise Cutts, Quanta Magazine, 23 Sep. 2026
And the disturbing oscillations are a journey from uncertainty to insight, a train ride from introspection to moral resolution.

— Ben Corn, Christian Science Monitor, 19 Sep. 2026

Definition of oscillation

Noun

Washington’s track record, after all, is defined by betrayal.

— Mohammad Ayatollahi Tabaar, Foreign Affairs, 1 Oct. 2026
Pulled into the action is Liz Gold, an idealistic young woman whose courage and conviction force Leamas to navigate a world where loyalties fracture and betrayal is inevitable.

— Max Goldbart, Deadline, 28 Sep. 2026

Definition of betrayal

Noun

Anything less will demonstrate societal disloyalty to the government and opposition to the Ukraine War.

— Regina Smyth, The Conversation, 16 Sep. 2026
Leaders can maintain alumni relationships, make re-entry culturally acceptable and ensure hiring processes do not automatically treat departure as disloyalty.

— Sheila Callaham, Forbes.com, 29 Aug. 2026

Definition of disloyalty

Noun

Platner, indeed, has boiled down nearly all political problems to the perfidy of sinister oligarchs.

— Jonathan Chait, The Atlantic, 6 July 2026
If the landing had been faked, the Soviets would have figured it out and would have loved to reveal to the world America’s perfidy.

— Encyclopedia Britannica, Encyclopedia Britannica, 14 May 2026

Definition of perfidy

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inconstancies

inconstancy

inconstant

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“Inconstancy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inconstancy. Accessed 9 Oct. 2026.

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Synonyms of inconstancy

noun

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