adv slyly.
2. sly ·vt light or delicate; slight; thin.
3. sly ·vt artfully cunning; secretly mischievous; wily.
4. sly ·vt done with, and marked by, artful and dexterous secrecy; subtle; as, a sly trick.
5. sly ·vt dexterous in performing an action, so as to escape notice; nimble; skillful; cautious; shrewd; knowing;
in a good sense.