Bust
Flunk
Flunk verb - To be unsuccessful.
Bust and flunk are semantically related in be unsuccessful topic. You can use "Bust" instead a verb "Flunk".
Cite this Source
Flunk and Bust. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/bust/flunk
Bust & Flunk. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/bust/flunk>.
Flunk or Bust. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/bust/flunk.
Google Ngram Viewer shows how "bust" and "flunk" have occurred on timeline