Efficiently
Efficiently adverb - With efficiency; in an efficient manner.
Flat out and efficiently are semantically related. in exhaustively topic. In some cases you can use "Flat out" instead an adverb "Efficiently".
Nearby Words: efficient, efficiency
Flat out
Flat out adverb - At top speed.
Show all Definitions
Synonyms for Flat out
Efficiently and flat out are semantically related. Sometimes you can use "Efficiently" instead an adverb phrase "Flat out".
Mutual synonyms
Cite this Source
Flat out and Efficiently. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/efficiently/flat_out
Efficiently & Flat out. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/efficiently/flat_out>.
Flat out or Efficiently. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/efficiently/flat_out.
Google Ngram Viewer shows how "efficiently" and "flat out" have occurred on timeline