treacherous
adjective
treach·er·ous
ˈtre-chə-rəs 
ˈtrech-rəs
1
a
: likely to betray trust : unreliable
a treacherous memory
b
: providing insecure footing or support
treacherous quicksand
c
: marked by hidden dangers, hazards, or perils
2
: characterized by or manifesting treachery : perfidious
treacherously
adverb
treacherousness
noun
Synonyms
Examples of treacherous in a Sentence
a treacherous act of betrayal
They were not prepared to hike over such treacherous terrain.
The snow made their hike all the more treacherous.
Discussions about money can lead couples into treacherous territory.
Recent Examples on the Web
The weather advisories warned people that winds of up to 40 mph and snow amounts of 6 to 7 inches will create treacherous travel conditions.
—
Christopher Cann, USA TODAY, 31 Dec. 2024
Beyond the lifeboat of major film festivals, which still assist a handful of buzzy international and independent films in their treacherous journey to release, such entities as the self-congratulatory, navel-gazing Oscars have seemingly abandoned the inclusion of riskier, daring films.
—Nicholas Bell, SPIN, 25 Dec. 2024
Many people in the Northeast faced treacherous conditions as heavy lake-effect snow hit Ohio, Pennsylvania, and New York.
—Amanda Castro, Newsweek, 24 Dec. 2024
Nine states from Virginia to Maine are under snow alerts on Christmas Eve morning as a band of snow moves through the Northeast, bringing treacherous driving conditions.
—Emily Shapiro, ABC News, 24 Dec. 2024
See all Example Sentences for treacherous 
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Christopher Cann, USA TODAY, 31 Dec. 2024
Beyond the lifeboat of major film festivals, which still assist a handful of buzzy international and independent films in their treacherous journey to release, such entities as the self-congratulatory, navel-gazing Oscars have seemingly abandoned the inclusion of riskier, daring films.
—Nicholas Bell, SPIN, 25 Dec. 2024
Many people in the Northeast faced treacherous conditions as heavy lake-effect snow hit Ohio, Pennsylvania, and New York.
—Amanda Castro, Newsweek, 24 Dec. 2024
Nine states from Virginia to Maine are under snow alerts on Christmas Eve morning as a band of snow moves through the Northeast, bringing treacherous driving conditions.
—Emily Shapiro, ABC News, 24 Dec. 2024
See all Example Sentences for treacherous
Dictionary Entries Near treacherous
Cite this Entry
“Treacherous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/treacherous. Accessed 15 Jan. 2025.
Copy CitationKids Definition
treacherous
adjective
treach·er·ous
ˈtrech-(ə-)rəs
1
a
: guilty of treachery
b
: likely to betray : unreliable
a treacherous memory
2
: giving a false appearance of safety or solidity
a treacherous stretch of bog
treacherously
adverb
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