虚诈

虚诈	xū zhà	tricky and hypocritical
虚	xū	emptiness / void / abstract theory or guiding principles / empty or unoccupied / diffident or timid / false / humble or modest / (of health) weak / virtual / in vain
诈	zhà	to cheat / to swindle / to pretend / to feign / to draw sb out / to try to extract information by deceit or bluff