One entry found for sly.

Main Entry: sly
Pronunciation: sl
Function: adjective
Inflected Form(s): sli·er or sly·er /sl(-)r/; sli·est or sly·est /sl-st/
1 a : clever at hiding one's goals or purpose b : tending to secrecy or concealment
2 : lightly mischievous <a sly smile>
synonym see CUNNING
- sly·ly adverb
- sly·ness noun
- on the sly : in a secret manner