Hellacious
Hellacious adjective - Extreme in degree, power, or effect.
Usage example: the hellacious heat was more than we could bear
Hard and hellacious are semantically related. In some cases you can use "Hard" instead an adjective "Hellacious".
Hard
Hard adjective - Requiring considerable physical or mental effort.
Usage example: a hard exam to pass
Hellacious and hard are semantically related. Sometimes you can use "Hellacious" instead an adjective "Hard".
Mutual synonyms
Cite this Source
Hard and Hellacious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/hellacious/hard
Hellacious & Hard. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/hellacious/hard>.
Hard or Hellacious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/hellacious/hard.
Google Ngram Viewer shows how "hellacious" and "hard" have occurred on timeline