faithless, false, disloyal, traitorous, treacherous, perfidious mean untrue to what should command one's fidelity or allegiance. faithless applies to any failure to keep a promise or pledge or any breach of …

treacherous adjective (DANGEROUS) Add to word list If the ground or sea is treacherous, it is extremely dangerous, especially because of bad weather conditions:

TREACHEROUS definition: characterized by faithlessness or readiness to betray trust; traitorous. See examples of treacherous used in a sentence.

If you describe someone as treacherous, you mean that they are likely to betray you and cannot be trusted.

dangerous, especially when seeming safe. The ice on the roads made driving conditions treacherous. Definition of treacherous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, …

Factsheet What does the adjective treacherous mean? There are two meanings listed in OED's entry for the adjective treacherous. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of treacherous. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

treach•er•ous /ˈtrɛtʃərəs/ adj. of or relating to treachery: the treacherous tyrant who stabbed his friends in the back. deceptive or unreliable. unstable or insecure; hazardous: treacherous footing on the icy …

TREACHEROUS meaning: 1 : not able to be trusted showing that someone cannot be trusted; 2 : very dangerous and difficult to deal with

• Strong winds and heavy rain are making driving conditions treacherous in some areas. • The land he rode was marshy, forcing him to weave an intricate course past the more treacherous patches.