Furtive
Furtive adjective - Given to acting in secret and to concealing one's intentions.
Usage example: a furtive guy who always seems to be up to something, and usually that something is no-good
Sly is a synonym for furtive in honest topic. In some cases you can use "Sly" instead an adjective "Furtive", when it comes to topics like secret, sneaky, secretive. popular alternative
Nearby Word: furtively
Sly
Sly adjective - Clever at attaining one's ends by indirect and often deceptive means.
Usage example: the movie pairs a sly, dissembling ex-con with an upstanding, straight-arrow cop
Furtive is a synonym for sly in secret topic. You can use "Furtive" instead an adjective "Sly", if it concerns topics such as honest, cunning, clever, surreptitious. popular alternative
Mutual synonyms
Cite this Source
Sly and Furtive. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/furtive/sly
Furtive & Sly. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/furtive/sly>.
Sly or Furtive. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/furtive/sly.
Google Ngram Viewer shows how "furtive" and "sly" have occurred on timeline