as in treacherous
formal
causing harm in a way that is gradual or not easily noticed
Most people with this insidious disease have no idea that they are infected. an insidious enemy
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Example Sentences
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Recent Examples of insidious
Now that the wildfires have been contained, a more insidious and enduring threat looms over Los Angeles, posed by the invisible, potentially lethal toxins the flames unleashed.
—
Elycia Rubin, The Hollywood Reporter, 7 Feb. 2025
This is the insidious nature of coercive control—a pattern of behaviors designed to strip away your independence, self-confidence and sense of reality.
—Mark Travers, Forbes, 19 Feb. 2025
But another gesture soon after has sent observers questioning whether Musk was expressing just joy, or something more insidious.
—Chad De Guzman, TIME, 21 Jan. 2025
But even more insidious are the foreign governments with bot farms doing the same engagement farming.
—Rochelle Eastman, Twin Cities, 7 Feb. 2025
See All Example Sentences for insidious
Elycia Rubin, The Hollywood Reporter, 7 Feb. 2025
This is the insidious nature of coercive control—a pattern of behaviors designed to strip away your independence, self-confidence and sense of reality.
—Mark Travers, Forbes, 19 Feb. 2025
But another gesture soon after has sent observers questioning whether Musk was expressing just joy, or something more insidious.
—Chad De Guzman, TIME, 21 Jan. 2025
But even more insidious are the foreign governments with bot farms doing the same engagement farming.
—Rochelle Eastman, Twin Cities, 7 Feb. 2025
See All Example Sentences for insidious
Recent Examples of Synonyms for insidious
Adjective
-
Whiteout conditions are possible and could make travel conditions treacherous and potentially life-threatening.—
Forum News Service,
Twin Cities,
4 Mar. 2025
-
The climate, meanwhile, continues on a treacherous path of warming.—
Brent Crane,
The New Yorker,
2 Mar. 2025
Adjective
-
Superyacht designers have begun to navigate the cultural preferences of their clientele by redefining yacht interiors in subtle but significant ways.—
Tristan Rutherford,
Robb Report,
2 Mar. 2025
-
These devices are more precise and subtle than old fashioned metal detectors, using specific sensitivity settings and artificial intelligence to detect hidden weapons as opposed to harmless items such as keys and phones, allowing people to enter facilities with very little delay.—
Chris Boyette,
CNN,
2 Mar. 2025
Adjective
-
To illustrate, in the United Kingdom vaccinations took a considerable dip in the early 2000s after Wakefield’ false claims of a link between the MMR shot and autism were posted in the media.—
Joshua P. Cohen,
Forbes,
8 Mar. 2025
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In those documents, West discussed not only how to conduct experiments to implant false memories, instill specific mental disorders, and induce trance states, but also how to hide them.—
Randall Colburn,
EW.com,
8 Mar. 2025
Adjective
-
Burrowes’ new fraud lawsuit also includes claims for unjust enrichment and deceptive business practices.—
Nancy Dillon,
Rolling Stone,
26 Feb. 2025
-
The Federal Trade Commission (FTC) has taken some steps to regulate the collection of data in vehicles, focusing on consumer protection and preventing deceptive practices.—
Eric Reicin,
Forbes,
26 Feb. 2025
Adjective
-
Jake Gyllenhaal is his foil as the perfidious Iago, who goads Othello into unreasoning jealousy with lies about his beloved Desdemona (Molly Osborne).—
New York Times,
New York Times,
17 Feb. 2025
-
Since then, Putin has sought instead to rally the public to the defense of a motherland besieged by the perfidious and cunning West.—
Leon Aron,
The Atlantic,
5 Dec. 2024
Adjective
-
Fixes an issue where certain text hints in combat were incorrect when using a Friend's Support character Trailblazer.—
Ross Rosenfeld,
Newsweek,
26 Feb. 2025
-
But a New York Times analysis of the $55 billion in savings claimed by DOGE found that the math is marred with accounting errors, incorrect assumptions, outdated data and other mistakes.—
Talmon Joseph Smith,
New York Times,
22 Feb. 2025
Adjective
-
Notoriously indifferent to anyone on the wrong side of the 25-54 demo, advertisers eat this stuff up with a spork.—
Anthony Crupi,
Sportico.com,
7 Mar. 2025
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For years, patient advocate Paige More knew something was wrong.—
Emily Cegielski,
Flow Space,
7 Mar. 2025
Cite this Entry
“Insidious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insidious. Accessed 12 Mar. 2025.
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