adjective, cheek·i·er, cheek·i·est.
Examples from the Web for cheekily
We could make out what she said cheekily in response to his questions.
The wrestling worthy accessory is a bit of a misnomer—there is no cheekily exposed skin in this full-coverage contraption.
It would come down to what McDonough cheekily called the “half Monty” versus the “full Monty.”
“There might be a little chance of romance, you never know,” he said cheekily.
They were cheekily copying art from the fair and selling it.
He looked at me, cheekily; then he vanished through the gate.Tommy Wideawake|H. H. Bashford