atrocious

 
Pronunciation: /əˈtrəʊʃəs/

adjective

  • horrifyingly wicked: atrocious cruelties
  • of a very poor quality; extremely bad or unpleasant: he attempted an atrocious imitation of my English accent atrocious weather

Derivatives

atrociously

adverb

atrociousness

noun

Origin:

mid 17th century: from Latin atrox, atroc- 'cruel' + -ious