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

Many commenters highlight fears of infidelity, health risks, and the belief that a bisexual man might eventually prefer men, leading to heartbreak.

— Razzan Nakhlawi, Washington Post, 10 Oct. 2026
But their relationship cracked amid Hill’s infidelity and a lack of trust, Vaccaro testified.

— Milena Malaver, Miami Herald, 7 Oct. 2026

Definition of infidelity

Noun

Atmospheric fluctuations on shorter weekly or daily scales, such as sudden stratospheric warming events, polar vortex disruptions, or shifts in the Arctic Oscillation, can temporarily override the overarching El Niño pattern.

— Ahmad Bajjey, CBS News, 16 Oct. 2026
Schimpf said the setup allows Anduril to give liquidity to employees without the distraction of stock price fluctuations.

— Samantha Subin, CNBC, 15 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

That haziness gets more distorted on the title track, which hits its apex with siren-like oscillations.

— Cassidy Sollazzo, Pitchfork, 14 Oct. 2026
However, the experiments demonstrated coordinated oscillations, not a robot capable of performing multiple practical tasks.

— Neetika Walter, Interesting Engineering, 14 Oct. 2026

Definition of oscillation

Noun

Another section describes the government’s response to protests in 2014, when the government says Maduro discussed kidnapping military officers suspected of disloyalty and using torture to force them to reveal information about potential plots.

— Antonio María Delgado, Miami Herald, 8 Oct. 2026
Anything less will demonstrate societal disloyalty to the government and opposition to the Ukraine War.

— Regina Smyth, The Conversation, 16 Sep. 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 19 Oct. 2026.

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Synonyms of inconstancy

noun

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