equivocation, lying, mendacity, prevarication

chicane, chicanery, fraudulence, hanky-panky, jugglery, legerdemain, mountebankery, obliquity, skulduggery (or skullduggery), subterfuge, swindling, trickery, wile

falsehood, falsity, fib, untruth

hypocrisy, insincerity, sanctimoniousness, two-facedness

artfulness, caginess (also cageyness), deviousness, shrewdness

treacherousness, underhandedness, unscrupulousness

covertness, furtiveness, secrecy, shadiness, sneakiness, stealthiness

oiliness, shiftiness, slickness, slipperiness, slyness, smoothness