fatally

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>