Breakneck
Breakneck adjective - Moving, proceeding, or acting with great speed.
Usage example: the breakneck production of naval vessels during World War II
Speedy
Speedy adjective - Moving, proceeding, or acting with great speed.
Usage example: a speedy worker but not a very careful one, unfortunately
Breakneck is a synonym for speedy in fast topic. You can use "Breakneck" instead the word "Speedy" as an adjective or an adverb, if it concerns topics such as hasty. popular alternative
Mutual synonyms
Cite this Source
Speedy and Breakneck. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/breakneck/speedy
Breakneck & Speedy. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/breakneck/speedy>.
Speedy or Breakneck. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/breakneck/speedy.
Google Ngram Viewer shows how "breakneck" and "speedy" have occurred on timeline