Hellacious
Hellacious adjective - Extreme in degree, power, or effect.
In the know and hellacious are semantically related. In some cases you can use "In the know" instead an adjective "Hellacious".
In the know
Hellacious and in the know are semantically related. Sometimes you can use "Hellacious" instead an adjective phrase "In the know".
Mutual synonyms
Cite this Source
In the know and Hellacious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/hellacious/in_the_know
Hellacious & In the know. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/hellacious/in_the_know>.
In the know or Hellacious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/hellacious/in_the_know.
