as in traitorous
not true in one's allegiance to someone or something
a treacherous "friend," she's been known to turn against people in the blink of an eye
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
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 treacherous
The most treacherous country in the world for taking selfies is India, according to a new study from The Barber Law Firm, as reported in the New York Post.
—
Katie Nadworny, Travel + Leisure, 9 Sep. 2025
Arriving home in the dark after work or dinners out is inevitable, but finding the front door doesn’t have to be a treacherous experience for you or your guests.
—Maggie Horton, PEOPLE, 8 Sep. 2025
On the other hand, Will — played with a jagged sensitivity by Paul Mescal, making the most of his sad-eyed charisma and physical presence — is a guy who feels more at home at a desk, with only a candle to light his way through the treacherous creative process.
—David Fear, Rolling Stone, 8 Sep. 2025
In 2022, when record numbers of Venezuelans began making the overland journey to Central America and the United States, Tren de Aragua was reported to be active on the outskirts of the Darién Gap, a treacherous jungle linking Colombia and Panama.
—Jonathan Blitzer, New Yorker, 8 Sep. 2025
See All Example Sentences for treacherous
Katie Nadworny, Travel + Leisure, 9 Sep. 2025
Arriving home in the dark after work or dinners out is inevitable, but finding the front door doesn’t have to be a treacherous experience for you or your guests.
—Maggie Horton, PEOPLE, 8 Sep. 2025
On the other hand, Will — played with a jagged sensitivity by Paul Mescal, making the most of his sad-eyed charisma and physical presence — is a guy who feels more at home at a desk, with only a candle to light his way through the treacherous creative process.
—David Fear, Rolling Stone, 8 Sep. 2025
In 2022, when record numbers of Venezuelans began making the overland journey to Central America and the United States, Tren de Aragua was reported to be active on the outskirts of the Darién Gap, a treacherous jungle linking Colombia and Panama.
—Jonathan Blitzer, New Yorker, 8 Sep. 2025
See All Example Sentences for treacherous
Recent Examples of Synonyms for treacherous
Adjective
-
Clarisse looks intimidating climbing out of a boat, as does Bushnell’s traitorous Luke, who wields a sharp-looking knife.—
Dessi Gomez,
Deadline,
24 July 2025
-
There's a delicious whodunit aspect to it, too, as the list of five potentially traitorous suspects includes the operative's own high-profile wife (Cate Blanchett).—
Brian Truitt,
USA Today,
4 July 2025
Adjective
-
One of the most painful scenarios for a founder is filing an S-1 with incomplete or unreliable numbers.—
Joseph Lucosky,
Forbes.com,
19 Sep. 2025
-
No eyewitnesses, forensic evidence unreliable, defense lawyer argues The forensic evidence that tied bullet casings found at the murders to the two 9 mm guns was scrutinized by a defense expert, who criticized lab procedures presented by the prosecution.—
Miguel Torres,
AZCentral.com,
19 Sep. 2025
Adjective
-
More recently, her brother, Jose Napoleon, the director of admissions at Azure College in Fort Lauderdale, was charged this year with a wire-fraud conspiracy involving the sale of false nursing degrees.—
Jay Weaver,
Miami Herald,
20 Sep. 2025
-
In July and August 2024 anti-migrant riots ripped across the country following the murder of three young girls at a dance class in Stockport, and false rumors an immigrant was responsible.—
James Bickerton,
MSNBC Newsweek,
20 Sep. 2025
Cite this Entry
“Treacherous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treacherous. Accessed 21 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share