- The definition of wily is something or someone who is cunning and sly.
An example of wily is a bank robber whose picture never gets caught on a surveillance camera.
wily definition by Webster's New World
wily definition by American Heritage Dictionary
adjective wi·li·er, wi·li·est
Full of wiles; cunning.
- wilˈi·ly adverb
- wilˈi·ness noun