Pronunciation (UK) IPA (key): /əˈtrəʊʃəs/ (US) IPA (key): /əˈtroʊʃəs/ Audio (AU)(file) Adjective Positive atrocious Comparative more atrocious Superlative most atrocious Something that is atrocious is of a very bad quality or is disgusting. The movie's acting was atrocious. The weather has been atrocious all week. Something that is atrocious is evil or cruel. It is well known that the prison's treatment of prisoners is atrocious.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads