Meaning & Definition
adjective
Having or showing a cunning and deceitful nature.
The sly fox outsmarted the hunters.
Obtained in a dishonest or cunning way.
She had a sly plan to get out of doing her chores.
Clever in a deceptive or cunning way.
His sly smile hinted that he was up to something.
Subtle or elusive; not easily understood.
There was a sly humor in his remarks that few noticed.
Etymology
Middle English 'sly', from Old Norse 'slyðr' meaning 'sly, clever'.
Common Phrases and Expressions
sly as a fox:
Extremely clever or cunning, often in a deceitful way.
sly smile:
A smile that suggests cunningness or deceit.
Slang Meanings
Sly dog
He's a sly dog for getting away with that prank.
Sly boots
She's such a sly boots, always scheming.