Synonyms and Antonyms of sneaky
1
given to acting in secret and to concealing one's intentions
- his opponent's sneaky campaign manager was clearly up to something
artful, crafty, cunning, devious, foxy, guileful, slick, wily
close, closemouthed, reticent, secretive
clandestine, covert, dark
deceitful, deceiving, deceptive, devious, duplicitous, trickish, tricky, underhand, underhanded
cheating, crooked, defrauding, dishonest, dissembling, double-dealing, knavish, two-faced
lying, mendacious, untrustworthy, untruthful
insidious, perfidious, serpentine, treacherous
aboveboard, forthright, plainspoken, straightforward
candid, direct, foursquare, frank, open, plain
honest, trustworthy, truthful
2
undertaken or done so as to escape being observed or known by others
- a sneaky plan to replace the priceless painting with a copy
backstairs, behind-the-scenes, clandestine, covert, furtive, hole-and-corner, hugger-mugger, hush-hush, private, privy, secret, sneak, sneaking, stealth, stealthy, surreptitious, undercover, underground, underhand, underhanded
back-channel, closed-door, off-the-books, off-the-record
classified, confidential, restricted, top secret, undisclosed
concealed, hidden, secreted, subterranean, unadvertised, unexposed
acknowledged, avowed
aboveboard, straightforward, unconcealed, undisguised
unclassified, unrestricted
clear, evident, manifest, obvious, patent, plain