The definition of atrocious is something evil, cruel or absolutely horrible.(adjective)
The actions of Pol Pot in Cambodia are an example of atrocious.
See atrocious in Webster's New World College Dictionary
Origin: < L atrox, (gen. atrocis), fierce, cruel < ater, black + -ox < ? base of oculus, eye
See atrocious in American Heritage Dictionary 4
Origin: From Latin atrōx, atrōc-, frightful, cruel; see āter- in Indo-European roots.
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