[syn: treachery, betrayal, treason, perfidy]
The Collaborative International Dictionary of English v.0.48:
Treachery \Treach"er*y\, n. [OE. trecher["i]e, trichere, OF.
trecherie, tricherie, F. tricherie trickery, from tricher to
cheat, to trick, OF. trichier, trechier; probably of Teutonic
origin. See Trickery, Trick.]
Violation of allegiance or of faith and confidence;
treasonable or perfidious conduct; perfidy; treason.
Be ware, ye lords, of their treachery. --Chaucer.
In the council chamber at Edinburgh, he had contracted
a deep taint of treachery and corruption. --Macaulay.
[1913 Webster] Treachetour
WordNet (r) 3.0 (2006):
n 1: betrayal of a trust [syn: perfidy, perfidiousness,
2: an act of deliberate betrayal [syn: treachery, betrayal,
Moby Thesaurus II by Grady Ward, 1.0:
60 Moby Thesaurus words for "treachery":
Machiavellianism, ambidexterity, artifice, bad faith, cunning,
danger, deceitfulness, desultoriness, dirty pool, dirty trick,
dirty work, dishonesty, disloyalty, double cross, double-dealing,
doubleness, doubleness of heart, duplicity, faithlessness,
falseheartedness, falseness, foul play, hazard, improbity,
infirmity, insecurity, insolidity, instability, insubstantiality,
low cunning, perfidiousness, perfidy, peril, perilousness,
precariousness, risk, riskiness, sellout, shakiness, shiftiness,
shiftingness, slipperiness, speculativeness, ticklishness,
treacherousness, treason, two-facedness, unauthenticity,
unauthoritativeness, undependability, unfaithworthiness,
unreliability, unsolidity, unsoundness, unsteadfastness,
unsteadiness, unsubstantiality, unsureness, untrustworthiness,