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