Morgan's sneaky dog has a bad habit of stealing his shoes.
- When you creep into someone's house to copy his phone book so you can throw a surprise party, this is an example of being sneaky.
- When you develop a secret and reluctant feeling of warmth and love for a cat you claim to hate, this is an example of a sneaky affection.
The definition of sneaky is someone who is deceptive or sly, or is something secret and reluctant.
of or like a sneak; underhanded
(comparative sneakier, superlative sneakiest)