/ əˈtrəʊʃəs; NAmE əˈtroʊ-/ adjective
1.
very bad or unpleasant
SYN terrible :
She speaks French with an atrocious accent.
Isn't the weather atrocious?
2.
very cruel and shocking :
atrocious acts of brutality
► atro·cious·ly adverb
••
WORD ORIGIN
mid 17th cent.: from Latin atrox , atroc- cruel + -ious .