What is sly meaning?

As an adjective, sly means having or showing a deceptive or cunning manner. It can also mean mischievous or roguish in a playful way. As a noun, sly refers to a person who is cunning or dishonest. The word sly is often used to describe someone who is clever or savvy in a particular situation, especially in a way that is sneaky or underhanded. It can also be used to describe an action that is done subtly and without attracting attention.