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- Dictionarytreach·er·ous/ˈtreCH(ə)rəs/
adjective
- 1. guilty of or involving betrayal or deception: "a treacherous Gestapo agent" Similar Opposite
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The meaning of TREACHEROUS is likely to betray trust : unreliable. How to use treacherous in a sentence. Synonym Discussion of Treacherous.
TREACHEROUS definition: 1. If the ground or sea is treacherous, it is extremely dangerous, especially because of bad…. Learn more.
Treacherous means either not trusted or dangerous. A treacherous road might be icy or otherwise likely to cause a car accident. A treacherous friend will betray you.
(of the ground or the sea) extremely dangerous, esp. because of bad weather conditions: Freezing rain made driving treacherous. treacherous adjective (NOT LOYAL) (of a person) guilty of deceiving someone who trusts you: He was treacherous, or at least sneaky.
Definition of treacherous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Treacherous definition: characterized by faithlessness or readiness to betray trust; traitorous. . See examples of TREACHEROUS used in a sentence.
Treacherous definition: Guilty of or characterized by betrayal of confidence or trust; perfidious.
TREACHEROUS definition: 1. very dangerous, especially because of bad weather conditions: 2. If someone is treacherous…. Learn more.
adj. 1. characterized by faithlessness or readiness to betray trust. 2. deceptive, untrustworthy, or unreliable. 3. unstable or insecure, as footing. 4. dangerous; hazardous: a treacherous climb. treach′er•ous•ly, adv. treach′er•ous•ness, n.
Origin of treacherous 1 First recorded in 1300–50; Middle English trecherous, from Anglo-French, equivalent to trecher “deceiver” ( trech(ier) “to deceive” + -er -er 2 ) + -ous -ous ; compare French tricheur “trickster”