perfidiously happy-faced

All the generals cursed the ‘bandits’ of the Provisional Government, excoriated their perfidy, railed against them – but, that denunciation done, they admitted they faced a fait accompli.

Perfidious, bifid, the word "Negroid" does double duty.

Even after losing the perfidious boyfriend

Wong’s characters are like zombies moving around somnambulistically in a subtropical urban landscape, abandoned to the elements by a perfidious lover