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
Underhanded is a synonym for sly in character trait topic. In some cases you can use "Underhanded" instead an adjective "Sly", when it comes to topics like crafty, perverse, dishonest.
Underhanded
Underhanded adjective - Given to or marked by cheating and deception.
Usage example: the commercial is a part of an underhanded PR campaign to whitewash the company's environmental record
Sly is a synonym for underhanded in character trait topic. You can use "Sly" instead an adjective "Underhanded", if it concerns topics such as crafty, perverse, secret, deceitful.
Nearby Word: underhand
Mutual synonyms
Both words in one sentence
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This is lampshaded a couple times in the third game when Sly comments Bentley on the latter's growing experience with underhanded tactics.
Source: Franchise / Sly Cooper
Cite this Source
Underhanded and Sly. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/sly/underhanded
Sly & Underhanded. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/sly/underhanded>.
Underhanded or Sly. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/sly/underhanded.
Google Ngram Viewer shows how "sly" and "underhanded" have occurred on timeline