nefandous

1. (archaic) Unspeakable, appalling.Examples: "Also the Daemon belched forth most horrid and nefandous Blasphemies, exalting himself above the most High."; "It had only horror, because I knew unerringly the monstrous, nefandous analogy that had suggested it."; "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."archaic