nefandous

From Latin nefandus, from ne- (“not”) + fandus, gerundive of fārī (“to speak”).

• (UK) IPA^(key): /nɪˈfandəs/
• (US) IPA^(key): /nəˈfændəs/

nefandous (comparative more nefandous, superlative most nefandous)

1. Unspeakable, appalling.
   • 1684, Increase Mather, An Essay for the Recording of Illustrious Providences:

     Also the Daemon belched forth most horrid and nefandous Blasphemies, exalting himself above the most High.

   • 1931, H.P. Lovecraft, At the Mountains of Madness

     It had only horror, because I knew unerringly the monstrous, nefandous analogy that had suggested it.

   • 1999, Neal Stephenson, Cryptonomicon

     some combination of scrapie, long-term climatic change, nefandous conduct by jealous Outer Qwghlmians, and a worldwide shift in fashion away from funny-smelling thirty-pound sweaters with small arthropods living in them had driven them all into honest poverty and then not-so-honest poverty and led to their forcible transportation to Australia.