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

Decades later, the first couple of rock and roll briefly split in 2016 after rumors of infidelity, but reconciled shortly thereafter.

— Grace Gavilanes, PEOPLE, 20 Aug. 2026
Gripped by a paralyzing fear for the fate of her future children, Naama returns to the same monument where the infidelity took place; there, her parents appear before her.

— Katie Campione, Deadline, 4 Aug. 2026

Definition of infidelity

Noun

The team analyzed the corridor over the long term and used seasonal-trend decomposition using LOESS, a statistical method that helped separate seasonal fluctuations from longer-term settlement.

— Rupendra Brahambhatt, Interesting Engineering, 29 Aug. 2026
The short-sleeve shirt is ideal for temperature fluctuations in the cabin, and the stretchy wide-leg pants are perfect for long periods of sitting.

— Anna Popp, Travel + Leisure, 26 Aug. 2026

Definition of fluctuation

Noun

Because of its unfiltered depictions of sexuality, inappropriate relationships, and adultery, the 1971 film received a chilly response in conservative communities; however, it was applauded by critics and earned eight Oscar nominations.

— Air Mail, Air Mail, 22 Aug. 2026
Leontes, the king of Sicilia, has baselessly accused his wife, Hermione, of adultery, and the consequences have been dire.

— Sara Holdren, Vulture, 12 Aug. 2026

Definition of adultery

Noun

In addition to heart rate, calories burned, distance, duration, elevation, and speed, Samsung smartwatches track advanced running form metrics, including asymmetry, contact time, flight time, regularity, vertical oscillation, and stiffness.

— Andrew Gebhart, PC Magazine, 10 Aug. 2026
Five months of oscillation between bombing and negotiation have left Trump with no good options.

— semafor.com, semafor.com, 3 Aug. 2026

Definition of oscillation

Noun

The extremely soapy, enjoyably satirical true-life drama chronicles love, rampant betrayal and a brazen murder plot through three decades of the iconic Gucci fashion house.

— Brian Truitt, USA Today, 28 Aug. 2026
That act of literary betrayal—the source of Kiyosaki’s fame and much of his wealth—is the enduring mystery of his life.

— Christopher Cox, Vanity Fair, 26 Aug. 2026

Definition of betrayal

Noun

Law professor Sahar Aziz has documented how, in the post-9/11 era, visible Muslim identity increasingly came to be associated with foreignness and political disloyalty.

— Asma Uddin, The Conversation, 31 Aug. 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 1 Sep. 2026.

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Synonyms of inconstancy

noun

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