Flat out and Fast

Related terms

Flat out adverb - At top speed.

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Fast and flat out are semantically related. In some cases you can use "Fast" instead the phrase "Flat out" as an adverb or an adjective.

Fast adverb - With great speed.

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Flat out and fast are semantically related. Sometimes you can use "Flat out" instead the word "Fast" as an adverb or an adjective.

Nearby Words: fasted, fasting

Cite this Source

Fast and Flat out. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/flat_out/fast

Flat out & Fast. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/flat_out/fast>.

Fast or Flat out. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/flat_out/fast.

Google Ngram Viewer shows how "flat out" and "fast" have occurred on timeline