Treacherous — Treach er*ous, a. [See {Treacher}.] Like a traitor; involving treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; betraying a trust; faithless. [1913 Webster] Loyal father of a… … The Collaborative International Dictionary of English
treacherous — [adj1] dishonest, disloyal betraying, catchy, deceitful, deceptive, doublecrossing*, double dealing*, duplicitous, faithless, false, false hearted, fly by night*, insidious, misleading, perfidious, recreant, shifty*, slick*, slippery*, snake in… … New thesaurus
treacherous — ► ADJECTIVE 1) guilty of or involving betrayal. 2) having hidden or unpredictable dangers: treacherous currents. DERIVATIVES treacherously adverb treacherousness noun treachery noun. ORIGIN Old French trecherous, from trechier to cheat … English terms dictionary
treacherous — [trech′ər əs] adj. [ME trecherous < OFr trecheros] 1. characterized by treachery; traitorous; disloyal; perfidious 2. giving a false appearance of safety or reliability; untrustworthy or insecure [treacherous rocks] SYN. FAITHLESS… … English World dictionary
treacherous — index aleatory (perilous), bad (offensive), collusive, cruel, dangerous, detrimental, dishonest … Law dictionary
treacherous — (adj.) early 14c., from O.Fr. trecheros (12c.), from trecheur, agent noun from trechier to cheat, trick (see TRICK (Cf. trick)). Figuratively, of things, from c.1600. Related: Treacherously; treacherousness … Etymology dictionary
treacherous — *perfidious, traitorous, *faithless, false, disloyal Analogous words: betraying, deceiving, misleading, double crossing (see DECEIVE): seditious, mutinous, rebellious (see INSUBORDINATE): *dangerous, perilous … New Dictionary of Synonyms
treacherous — treach|e|rous [ˈtretʃərəs] adj 1.) someone who is treacherous cannot be trusted because they are not loyal and secretly intend to harm you ▪ a sly and treacherous woman ▪ a treacherous plot to overthrow the leader 2.) ground, roads, weather… … Dictionary of contemporary English
treacherous — treach|er|ous [ tretʃərəs ] adjective 1. ) very dangerous, especially because the dangers are not obvious: Is it wise to go out in this treacherous weather? a treacherous road/path/journey 2. ) someone who is treacherous pretends that they… … Usage of the words and phrases in modern English
treacherous — adjective 1 someone who is treacherous cannot be trusted because they are disloyal and secretly intend to harm you: a treacherous plot to overthrow the leader 2 ground or conditions that are treacherous are particularly dangerous because you… … Longman dictionary of contemporary English
