Fast
Fast adjective - Given to or marked by cheating and deception.
Usage example: rolling back odometers was just one of the fast practices that the used-car dealer was guilty of
Sly
Sly adjective - Clever at attaining one's ends by indirect and often deceptive means.
Both words in one sentence
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Pet names, sly compliments, even a mudbath... then an episode dedicated to them, which shows that when the "mortal enemies" factor is removed they become incredibly close very fast.
Source: Ho Yay / Western Animation -
There's also the fact that Dean gets a sly grin when he points it out, and the show cuts to the brothers chowing down on some fast food.
- He needs someone to place his bets for him, after he uses the slow horse to boost the odds, then swaps in the fast horse on the sly.
Source: Good for Bad
Cite this Source
Sly and Fast. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/fast/sly
Fast & Sly. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/fast/sly>.
Sly or Fast. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/fast/sly.
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