Synonyms for Fatally:

• adv.

  •accidentally (adverb)
  • fortuitously,
  • fortunately,
  • luckily,
  • randomly,
  • haphazardly,
  • causelessly,
  • adventitiously,
  • accidentally,
  • unintentionally,
  • aimlessly.
  •all (adverb)
  • fatally.
  •hopelessly (adverb)
  • desperately,
  • incurably,
  • unavailingly,
  • unfortunately,
  • impossibly,
  • badly.

• n.

  •
  • desperate,
  • dire,
  • grave,
  • profound,
  • extreme,
  • severe,
  • serious,
  • acute,
  • rigorous,
  • awful.
  •
  • on your last legs,
  • dying,
  • at death's door,
  • on your deathbed,
  • failing,
  • not long for this world,
  • someone's/something's days are numbered,
  • someone's number is up.

• Other synonyms:

  •
  • goner.
  •Other relevant words:
  • dimly,
  • murderously,
  • ruinously,
  • probably,
  • ingloriously,
  • calamitously,
  • fatal,
  • deadly,
  • ANON,
  • gravely,
  • perniciously,
  • virulently,
  • afterwards,
  • dreadfully,
  • unluckily,
  • before long,
  • ignominiously,
  • hopefully,
  • permanently,
  • shamefully,
  • bleakly,
  • darkly,
  • balefully,
  • Pestilently,
  • dangerously,
  • decisively,
  • grimly,
  • awfully,
  • critically,
  • severely,
  • later,
  • opprobriously,
  • manana,
  • fatefully,
  • soon,
  • ferally,
  • disgracefully,
  • vitally,
  • venomously,
  • acutely,
  • Achromatically,
  • banefully,
  • catastrophically,
  • Blackly,
  • poisonously,
  • weirdly,
  • Mordantly.

Paraphrases for Fatally:

• Equivalence

  • Adverb
    mortally, lethally.

• Independent

  • Adverb
    deathly, inevitably, irreversibly, irrevocably, hopelessly, severely, permanently, seriously, dead, critically.

• Other Related

  • Adverb
    irreparably, deadly, irretrievably, irredeemably.