Meaning & Definition
adverb
In a cunning or deceitful manner.
She slyly suggested that they could take a shortcut to avoid the long route.
With a sly or crafty demeanor.
He smiled slyly as he revealed his secret plan.
In a way that indicates cleverness or craftiness, often with a hint of mischief.
The cat watched the mouse slyly, waiting for the perfect moment to pounce.
In an indirect or sneaky way, often to achieve a particular goal or advantage.
She slyly maneuvered her way into the conversation, hoping to be noticed.
With an intention to deceive or trick others.
The politician spoke slyly, making promises that he had no intention of keeping.
Etymology
Middle English sly, from Old Norse slydr; akin to Old English slǣw, sleaw meaning 'sly, stealthy'.
Common Phrases and Expressions
sly as a fox:
Very cunning or scheming.
sly grin:
A smile that suggests a person is being mischievous or untruthful.
Slang Meanings
Sly as a cat
He's sly as a cat when it comes to avoiding trouble.
Sly move
That was a sly move in the game, you really caught them off guard.