Merriam-Webster Collegiate Dictionary - fatally

 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 ~ wounded  b. beyond repair ; irrevocably  c. in a manner resulting in ruin or evil it is ~ easy to pass off our prejudices as our opinions — W. F. Hambly  d. in a manner that cannot be easily resisted thinks she is ~ attractive — J. W. Krutch