slyly Synonyms

craftily cunningly knavishly trickily artfully foxily deceivingly misleadingly untruthfully mendaciously calculatingly by stealth dodgy sub-rosa backstage disingenuously in secret clandestinely unobserved sneakily shiftily on the sly on the side on the quiet insidiously in confidence in camera guilefully surreptitiously deviously shrewdly astutely wily deftly deceptively deceitfully cunning crafty covertly confidentially coaxingly cleverly cannily artful furtive furtively guileful underhandedly tricky subtly