Main Entry: fa·tal·ly

Function: adverb

Date: 15th century

1 : in a way determined by fate
2 : in a manner suggesting fate or an act of fate: as a : in a manner resulting in death : mortally <fatally wounded> b : beyond repair : irrevocably c : in a manner resulting in ruin or evil <it is fatally easy to pass off our prejudices as our opinions — W. F. Hambly> d : in a manner that cannot be easily resisted <thinks she is fatally attractive — J. W. Krutch>