Adjective

1. Dexterous in performing an action, so as to escape notice; nimble; skillful; cautious; shrewd; knowing; — in a good sense.
2. Artfully cunning; secretly mischievous; wily.
3. Done with, and marked by, artful and dexterous secrecy; subtle; as, a sly trick.
4. Light or delicate; slight; thin.

Synonyms

• artful
• cunning
• knowing
• sharp

• shrewd
• shifty
• sly as a fox
• slim
• wily

Noun

1. very young trees, in particular while growing very densely