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Definitions

treacherous

[trech-er-uhs] / ˈtrɛtʃ ər əs /
ADJECTIVE
dishonest, disloyal
Synonyms
STRONGEST
slippery tricky unreliable
WEAK
betraying catchy deceitful deceptive double-crossing double-dealing duplicitous faithless false false-hearted fly-by-night insidious misleading perfidious recreant shifty slick snake in the grass traitorous treasonable two-faced two-timing undependable unfaithful unloyal untrue untrustworthy
Antonyms
STRONGEST
honest reliable
WEAK
forthright harmless loyal true untreacherous
ADJECTIVE
dangerous
Synonyms
STRONGEST
difficult hazardous icy ominous perilous precarious risky slippery ticklish tricky unreliable unsafe unstable
WEAK
alarming chancy deceptive dissembled faulty hairy insecure jeopardous menacing misleading shaky undependable unhealthy unsound wicked
Antonyms
STRONGEST
certain definite easy friendly honest protected reliable safe secure stable straightforward strong sure uncomplicated
WEAK
forthright harmless loyal true untreacherous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Treacherous driving conditions on Saturday forced the closure of several highways near Lake Tahoe, including Interstate 80 over the Donner Summit.

From Seattle Times • May 5, 2024

Lindsey matted the hair of Zazie Beetz, who portrays the gun-toting Stagecoach Mary, while she created locks for Regina King’s tough-as-nails Treacherous Trudy Smith.

From New York Times • Apr. 28, 2022

"Treacherous" and "I Knew You Were Trouble" build into the earworm magnum opus "We are Never Ever Getting Back Together."

From Salon • Dec. 25, 2021

Treacherous overseas journeys from regions such as Congo saw hundreds of starved human beings, vulnerable to scurvy, smallpox, measles and more, crammed into vessels for trips that lasted more than 30 days.

From Los Angeles Times • May 30, 2019

"Treacherous hounds!" said Bree, shaking his mane and stamping with his hoof.

From "The Horse and His Boy" by C.S. Lewis

Vocabulary lists containing treacherous

List 2

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