sneaky 
/ˈsni:ki/ adjective
sneak·i·er; sneak·i·est /ˈsni:ki/ adjective [also more sneaky; most sneaky] 1 : behaving in a secret and usually dishonest manner
▪ a sneaky, untrustworthy person 2 : done in a secret and dishonest manner
▪ They make it look like you're getting a lot more than you really are. It's a sneaky trick. ▪ It's a sneaky way of getting people to buy something they don't need.
▪ a sneaky, untrustworthy person
▪ They make it look like you're getting a lot more than you really are. It's a sneaky trick. ▪ It's a sneaky way of getting people to buy something they don't need.
— sneak·i·ly /ˈsni:kəli/ adverb
▪ a sneakily subversive movie
/ˈsni:kəli/ adverb ▪ a sneakily subversive movie
— sneak·i·ness /ˈsni:kinəs/ noun [noncount]
/ˈsni:kinəs/ noun [noncount]
