Fast
Fast adjective - Moving, proceeding, or acting with great speed.
Usage example: the fast pace of construction resulted in our new house being done ahead of schedule
Slow
Slow adjective - Moving or proceeding at less than the normal, desirable, or required speed.
Usage example: slow readers
Common collocations
Both words in one sentence
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It doesn't matter how fast or slow you complete the level, as either way you'll keep hearing him telling you you're slow and be the first to finish.
Source: Continue Your Mission, Dammit! - Tales of Monkey Island: This is the first time we actually see scrolling subtitle text that accompanies the voices in a Monkey Island game, be it fast or slow.
Source: Scrolling Text -
Scrolling Text: This is the first time we actually see scrolling subtitle text that accompanies the voices in a Monkey Island game, be it fast or slow.
Cite this Source
Slow and Fast. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fast/slow
Fast & Slow. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fast/slow>.
Slow or Fast. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fast/slow.
Google Ngram Viewer shows how "fast" and "slow" have occurred on timeline