- fatal
- adj1. deadly, lethal, mortal, mortiferous, deathful, Archaic. lethiferous; venomous, virulent, toxic, morbific; fell, baneful, mephitic, viperous, poisonous, Archaic. venenose.2. destructive, ruinous, annihilative, calamitous, disastrous, catastrophic, cataclysmic, extirpative; killing, slaughtering, slaughterous, suicidal, murderous, death-dealing, internecine, internecive; pernicious, dangerous, hazardous, deleterious, detrimental; harm- 398ful, injurious, nocuous, hurtful, nocent, baleful, noisome; noxious, malicious, malign, malignant, menacing; pestilential, pestiferous, infective, infectious, pestilent, contaminative, contagious, leprous, septic.3. fateful, critical, crucial, pivotal; decisive, determinating; momentous, eventful, climacteric.4. inevitable, ineluctable, inescapable, unpreventable; unavoidable, includible, inevasible; fated, destined, fixed, predestined, foreordained, predetermined.
A Note on the Style of the synonym finder. 2014.