[1] : The Collaborative International Dictionary of English v.0.48

fatal \fa"tal\, a. l. fatalis, fr. fatum: cf. f. fatal. see
   fate.
   1. proceeding from, or appointed by, fate or destiny;
      necessary; inevitable. r.
      1913 webster

            these thing are fatal and necessary.  --tillotson.
      1913 webster

            it was fatal to the king to fight for his money.
                                                  --bacon.
      1913 webster

   2. foreboding death or great disaster. r.
      1913 webster

            that fatal screech owl to our house
            that nothing sung but death to us and ours. --shak.
      1913 webster

   3. causing death or destruction; deadly; mortal; destructive;
      calamitous; as, a fatal wound; a fatal disease; a fatal
      day; a fatal error.
      1913 webster
see also:
fate 

[2] : WordNet (r) 2.0

fatal
     adj 1: bringing death ant: nonfatal
     2: having momentous consequences; of decisive importance; "that
        fateful meeting of the u.n. when...it declared war on
        north korea"- saturday rev; "the fatal day of the election
        finally arrived" syn: fateful
     3: of events having extremely unfortunate or dire
        consequences; bringing ruin; "the stock market crashed on
        black friday"; "a calamitous defeat"; "the battle was a
        disastrous end to a disastrous campaign"; "such doctrines,
        if true, would be absolutely fatal to my theory"- charles
        darwin; "it is fatal to enter any war without the will to
        win it"- douglas macarthur; "a fateful error" syn: black,
         calamitous, disastrous, fateful
     4: controlled or decreed by fate; predetermined; "a fatal
        series of events" syn: fateful
see also:
nonfatal fateful black calamitous disastrous 

[3] : Moby Thesaurus II by Grady Ward, 1.0

187 moby thesaurus words for "fatal":
   accidental, adventitious, aleatory, appointed, approaching,
   awe-inspiring, badly off, baleful, baneful, black, brutal,
   calamitous, casual, casualty, cataclysmal, cataclysmic,
   catastrophic, causeless, chance, chancy, coming, consuming,
   consumptive, contingent, damaging, deadliness, deadly, death,
   death-bringing, deathful, deathly, decreed, demolishing,
   demolitionary, depredatory, depressed, desired, desolating,
   destinal, destined, destroying, destructive, determined,
   devastating, devoted, dicey, dire, disastrous, donsie, doomed,
   doomful, dreadful, earnest, emergent, essential, eventual,
   evil-starred, extrapolated, fatality, fated, fateful, fatidic,
   feral, final, fluky, foredoomed, foreordained, formidable,
   forthcoming, fortuitous, fortuneless, fratricidal, funest, future,
   futuristic, grave, grievous, hapless, harmful, heavy, hereafter,
   hoped-for, iffy, ill off, ill-fated, ill-starred, imminent,
   imposing, in adverse circumstances, in store, in the cards,
   inauspicious, incidental, indeterminate, ineluctable, inescapable,
   inevitable, internecine, killing, later, lethal, lethality,
   luckless, malefic, maleficent, malign, malignancy, malignant,
   marked, mischievous, mortal, mortality, murderous, nearing,
   necessary, nihilist, nihilistic, noxiousness, ominous, ordained,
   out of luck, pernicious, perniciousness, pestilent, pestilential,
   planet-struck, planned, plotted, poisonous, poisonousness,
   portentous, predestined, predetermined, predicted, preordained,
   probable, projected, prophesied, prospective, ravaging, risky,
   ruining, ruinous, sad, savage, self-destructive, serious,
   short of luck, sinister, sober, solemn, star-crossed,
   subversionary, subversive, suicidal, terminal, to come, to-be,
   toxic, tragic, ultimate, unavoidable, unblessed, uncaused,
   underprivileged, undetermined, unexpected, unforeseeable,
   unforeseen, unfortunate, unhappy, unlooked-for, unlucky,
   unpredictable, unprosperous, unprovidential, vandalic, vandalish,
   vandalistic, virulence, virulent, wasteful, wasting, weighty,
   withering, wreckful, written

[4] : The Free On-line Dictionary of Computing (27 SEP 03)

fatal
     
         resulting in termination of the program.
     
        1997-08-03
     
     

Fatal >> F Words
Fatal, definition of term: Fatal
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