Synonyms of fateful

2 Syllables
fatal, ruinous, doomful, tragic, crucial, loury
3 Syllables
direful, important, portentous, critical, ominous, lowery, tumbledown, uniform, eventful, impendent, resultful, sobering, momentous, acute, threatening, disastrous
4 Syllables
malificent, inauspicious, unpromising, decisive, conclusive, minatory, precursive, unamusing, ill-omened
5 Syllables
unpreventable, apocalyptic, inevitable, revelational, comminatory, premonitory
6 Syllables
annihilative, determinative, apocalyptical