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
Sharp is a synonym for fast in agility topic. In some cases you can use "Sharp" instead the word "Fast" as an adjective or an adverb or a noun, when it comes to topics like agile.
Sharp
Sharp adjective - Given to or marked by cheating and deception.
Usage example: sharp business practices that are being investigated by the state's consumer protection agency
Fast is a synonym for sharp in brisk topic. Sometimes you can use "Fast" instead the word "Sharp" as an adjective or an adverb or a noun, if it concerns topics such as perceptive, agile.
Both words in one sentence
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The Flavor Text at the bottom of the comic also mentions that she "forgets things can be hot, sharp or fast" as well.
Source: Webcomic / Grrl Power - Sometimes the blades are sharp or serrated, but the most blunted of fans turn into deadly shredding machines when moving fast enough.
Source: Deadly Rotary Fan -
We don't have sharp teeth, claws, our most muscular humans are nowhere near gorilla or bear level, we're nowhere near as fast as cheetahs and gazelles, and we can't fly or swim fast.
Source: Squishy Wizard
Cite this Source
Sharp and Fast. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fast/sharp
Fast & Sharp. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fast/sharp>.
Sharp or Fast. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fast/sharp.
Google Ngram Viewer shows how "fast" and "sharp" have occurred on timeline