sly, cunning, crafty, wily, tricky, foxy, artful, slick mean attaining or seeking to attain one's ends by guileful or devious means. sly implies furtiveness, lack of candor, and skill in concealing one's …

4 meanings: 1. crafty; artful 2. insidious; furtive 3. playfully mischievous; roguish 4. → See on the sly.... Click for more definitions.

She thought that by being sly, she could fool people. A cat can be a very sly animal.

SLY definition: cunning or wily. See examples of sly used in a sentence.

Definition of sly adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define sly. sly synonyms, sly pronunciation, sly translation, English dictionary definition of sly. adj. sli·er , sli·est also sly·er or sly·est 1. Clever or cunning, especially in the practice of deceit. 2. …

sly (slī), adj., sly•er or sli•er, sly•est or sli•est, n. adj. cunning or wily: sly as a fox. stealthy, insidious, or secret. playfully artful, mischievous, or roguish: sly humor. n. on the sly, secretly; …

• I began to dislike her; she looked sly and I felt indignant that she'd spoken to me like that. • He wanted to forget that she was sly and spiteful and malicious.

The adjective sly means Cunning, crafty, or deceitful in a subtle or sneaky manner.

Dec 9, 2025 · Wondering what does snide mean? Discover its sly slang meaning, origin, usage tips, and funniest online examples in this upbeat guide.