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Meaning of infernal

in•fer•nal

Pronunciation: (in-fûr'nl), [key]
— adj.
  1. hellish; fiendish; diabolical: an infernal plot.
  2. extremely troublesome, annoying, etc.; outrageous: an infernal nuisance.
  3. of, inhabiting, or befitting hell.
  4. of or pertaining to the underworld.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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