duplicity

djuːˈplɪsɪti

noun

deceitfulness.

he was accused of duplicity and branded a traitor

deceitfulness,deceit,deception,deviousness,two-facedness,double-dealing,underhandedness,dishonesty,falseness,falsity,fraud,fraudulence,sharp practice,swindling,cheating,chicanery,trickery,craft,guile,artifice,subterfuge,skulduggery,treachery,unfairness,unjustness,perfidy,improbity,crookedness,shadiness,foxiness,dirty tricks,shenanigans,monkey business,funny business,hanky-panky,jiggery-pokery,monkeyshines,codology,knavery,knavishness,management