treacherous
/ˈtɹɛt͡ʃəɹəs/
treacherous adjective: exhibiting treachery.
Adjective
treacherous (comparative more treacherous, superlative most treacherous)
- Exhibiting treachery.
- I see the wife misused by her husband, I see the treacherous seducer of young women, / I mark the ranklings of jealousy and unrequited love attempted to be hid […]1855, Walt Whitman, Leaves of Grass
- Antonyms:
- loyal
- Deceitful; inclined to betray.
- Synonyms:
- Judaslike, perfidious, traitorous, beguiling, deceitful, deceptious, deceptive, deceptory, fallacious, fraudful
- Unreliable; dangerous.
- a treacherous mountain trail
- Work on the muskeg resulted in the formation in the first instance, and later in lengths of newly-laid track disappearing without trace into the treacherous bog.1959 March, “New Railways in Quebec”, in Railway Magazine, page 202
- Synonyms:
- hazardous, perilous, unsound, dangerous, dangersome, hot, jeopardous, wicked, forbidding, parlous
treacherous meaning in Hindi, Tamil, Marathi and Urdu
treacherous in Hindi
- विश्वासघाती
treacherous in Tamil
- நம்ப முடியாத, நம்பிக்கைத் துரோகம் செய்யக்கூடிய, விசுவாசமற்ற, மிகவும் அபாயகரமான, கையாளக் கடினமான, மறைந்திருக்கும் பேராபத்துடைய
treacherous in Marathi
- treacherous, disloyal
- द्रोही drohī
- treacherous, deceitful
- विश्वासघातकी viśvāsghātakī
treacherous in Urdu
- treacherous, disloyal, traitor
- غدار ġaddār
More languagesFewer languages
- treacherous in Bengali
- বিশ্বাসঘাতক biśśasghatok
- treacherous in Malayalam
- വിശ്വാസവഞ്ചകനായ, അപായം നിറഞ്ഞ, വിശ്വസിക്കാൻ വിഷമമുള്ള, വഞ്ചനാത്മകമായ
- treacherous in Kannada
- ನಂಬಲಾಗದ, ಕುಸಿಯಬಲ್ಲ, ಗಟ್ಟಿಯಿಲ್ಲದ, ನಿಷ್ಠೆಯಿಲ್ಲದ
- treacherous in Gujarati
- વિશ્વાસઘાતી, વિશ્વાસઘાતક
- treacherous in Nepali
- विश्वासघाती, विश्वासघातकारी, विश्वासघातक
Examples of treacherous in a sentence
- […] they stood in the region of perpetual snow, amidst the glittering, treacherous glaciers and crevasses, with vast slippery-pathed precipices yawning round.2002, Charles Morris, The San Francisco Calamity:
- There are many treacherous paths leading toward history’s realms of darkness, but when it comes to routes hacked out by imperialist powers in the Congo, we really do seem near darkness’s heart.2009 March 30, Edward Rothstein, “Casting a Sliver of Light on the Heart of Darkness”, in The New York Times, archived from the original on...
Synonyms of treacherous
- Judaslike
- perfidious
- traitorous
- beguiling
- deceitful
- deceptive
- deceptory
- fallacious
- fraudful
- fraudulent
30 more synonymsFewer synonyms
- mendacious
- hazardous
- perilous
- unsound
- dangerous
- dangersome
- hot
- jeopardous
- wicked
- forbidding
- parlous
- periculous
- precarious
- risky
- unsafe
- booky
- dastardly
- disloyal
- double-crossing
- double-dealing
- double-faced
- double-hearted
- doublehearted
- faithless
- false
- false-hearted
- guileful
- hollow-hearted
- infidelitous
- Judasly
Antonyms
Forms of treacherous
| comparative | more treacherous |
|---|---|
| superlative | most treacherous |
Origin of treacherous
From Old French trecheros, tricheros (“deceitful”), equivalent to treacher + -ous. See treacher.
Words formed from treacherous
Phrases with treacherous
Questions about treacherous
- What does treacherous mean?
- Treacherous means exhibiting treachery.
- What is treacherous in Hindi?
- Treacherous in Hindi is विश्वासघाती. See Treacherous meaning in Hindi.
- How do you use treacherous in a sentence?
- […] they stood in the region of perpetual snow, amidst the glittering, treacherous glaciers and crevasses, with vast slippery-pathed precipices yawning round.
- What part of speech is treacherous?
- Treacherous is an adjective.
- How do you pronounce treacherous?
- Treacherous is pronounced /ˈtɹɛt͡ʃəɹəs/.
Words near treacherous in the dictionary
Source and license
Adapted from Wiktionary: treacherous (page history and authors); treacherous (Hindi, IndicTrans2 machine translation) (model and license); treacherous (Tamil Wiktionary) (page history and authors); द्रोही (Marathi) (page history and authors); غدار (Urdu) (page history and authors); বিশ্বাসঘাতক (Bengali) (page history and authors); treacherous (Malayalam Wiktionary) (page history and authors); treacherous (Kannada Wiktionary) (page history and authors); treacherous (Gujarati, IndicTrans2 machine translation) (model and license); treacherous (Nepali, IndicTrans2 machine translation) (model and license). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-treacherous.ogg.
Cite this entry: “treacherous.” Word.ws, https://word.ws/treacherous. Based on Wiktionary, CC BY-SA 4.0.