Hellacious
Hellacious adjective - Extreme in degree, power, or effect.
Usage example: the hellacious heat was more than we could bear
Rigorous and hellacious are semantically related. In some cases you can use "Rigorous" instead an adjective "Hellacious".
Rigorous
Rigorous adjective - Requiring considerable physical or mental effort.
Usage example: studied for umpteen months for the rigorous exam
Hellacious and rigorous are semantically related. Sometimes you can use "Hellacious" instead an adjective "Rigorous".
Mutual synonyms
Related pairs
- fine and hellacious
- fine and rigorous
- strenuous and hellacious
- strenuous and rigorous
- stiff and hellacious
- stiff and rigorous
- demanding and hellacious
- demanding and rigorous
- difficult and hellacious
- difficult and rigorous
- rough and hellacious
- rough and rigorous
- brutal and hellacious
- brutal and rigorous
Cite this Source
Rigorous and Hellacious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/hellacious/rigorous
Hellacious & Rigorous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/hellacious/rigorous>.
Rigorous or Hellacious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/hellacious/rigorous.
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