Словарь синонимов английского языка - sly

(adj) 1. cunning, artful, crafty, clever, wily, guileful, underhand(ed), deceitful, treacherous, foxy, scheming, plotting, designing, conniving, furtive, shrewd, sneaky, stealthy, insidious, devious, disingenuous, tricky, shifty, sharp, canny, Colloq shady: It was devilishly sly of him do manoeuvre you into paying for his party. 2. impish, elfish, roguish, mischievous, puckish, devilish, scampish, naughty, arch, waggish: Even as he was flirting with Allison he was giving Antonia sly, conspiratorial winks. -(n) 3. on the sly. slyly or slily, quietly, surreptitiously, covertly, stealthily, furtively, sneakily, underhandedly, clandestinely, Colloq on the q.t. or Q.T., on the side: Although her parents had forbidden her to see him again, Antonia continued to meet Kevin on the sly.