sly
//slaɪ//
Adjective
slyCanonical form
slyerComparative
slyestSuperlative
1
Cunning and deceitful; achieving aims through clever, secretive, or underhanded methods.
The sly fox tricked the other animals into giving him their food.
2
Showing a knowing or mischievous look, often suggesting hidden knowledge or intentions.
She gave him a sly smile, as if she knew something he didn't.