Synonyms for treacherous:
untrustworthy, deceitful, dishonest, Deceiving, immoral, cheating, insincere, hypocritical, unscrupulous, turncoat, fraudulent, devious, untrue, double-faced, underhanded, lying, corrupt, felonious, crooked, Prevaricating, traitorous, crafty, dishonorable.
dishonest, disloyal (adjective)
mutinous, anarchistic, rebellious, disobedient, subversive, intractable, unruly, ungovernable, nonconformist, factious, Disobeying, Disregardful, treasonous, defiant, undisciplined, unmanageable, traitorous, recalcitrant, disloyal, wayward, seditious, insubordinate, mischievous, Misbehaving, out of control, contrary.
baneful, churlish, mean, baleful, Black-hearted, hateful, ill-natured, rancorous, corrosive, venomous, catty, sullen, malevolent, wicked, bitter, perfidious, malignant, spiteful, hurtful, virulent, vicious, evil, antagonistic, vindictive, foul, malicious, hostile, sinister, nasty.
Sense 1 (noun)
Sense 2 (noun)
Sense 3 (noun)
Sense 4 (noun)
Usage examples for treacherous:
- He wears a cap and grey clothes- light- has long coarse brown hair, which has not been cut for a long time- grey- blue eyes- treacherous looks- great dark brown beard- he is accustomed to work on the land. - "Real Ghost Stories", William T. Stead.
- Once, when running ahead on a treacherous river, where in places the current was very rapid, and consequently the ice was thin, he broke through into the current underneath. - "By Canoe and Dog-Train", Egerton Ryerson Young.
- You were right; he's treacherous. - "Rodney The Partisan", Harry Castlemon.