Infernal

//ɪnˈfɝnəl// adj, noun

adj, noun ·Common ·High school level

Definitions

Noun
  1. 1
    An inhabitant of the infernal regions, a demon.
  2. 2
    an inhabitant of Hell wordnet
Adjective
  1. 1
    Of or relating to hell, or the world of the dead; hellish.
  2. 2
    Of or relating to a fire or inferno. broadly
  3. 3
    Stygian, gloomy.
  4. 4
    Diabolical or fiendish.

    "Th' infernal Serpent; he it was, whose guile Stird up with Envy and Revenge, deceiv'd The Mother of Mankind"

  5. 5
    Very annoying; damned.

    "As I had to put up with the patronage and the lecturings, and the eyeglass of that infernal old woman, […]"

Adjective
  1. 1
    expletives used informally as intensifiers wordnet
  2. 2
    extremely evil or cruel; expressive of cruelty or befitting hell wordnet
  3. 3
    being of the underworld wordnet
  4. 4
    characteristic of or resembling Hell wordnet
  5. 5
    of or pertaining to or characteristic of a very uncontrolled and intense fire wordnet

Synonyms

All synonyms
chthoniandiabolicalplutonianstygianabsoluteacherontic

Example

More examples

"We exorcise you, every unclean spirit, every satanic power, every incursion of the infernal adversary, every legion, every congregation and diabolical sect."

Etymology

From Middle French infernal, from Medieval Latin infernalis, from Latin īnfernus, from īnferum (“netherworld, underworld, hell”), equivalent to inferno + -al.

Related phrases

infernal deviceinfernal machineinfernal stoneinfernal machine

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.