fateful — OET

fateful

adjective

1 that fateful day when she met him:

decisive, determining, critical, crucial, pivotal;

momentous, important, of great importance, all-important, key, significant, far-reaching;

historic, weighty, consequential, of great consequence, epoch-making, portentous, apocalyptic;

informal earth-shattering, world-shattering, earth-shaking, world-shaking.

▷antonyms trivial, unimportant.

2 the fateful defeat of 1402:

disastrous, ruinous, calamitous, cataclysmic, devastating, destructive, tragic, awful, terrible, harmful, fatal, deadly.

fateful Oxford Dictionary of English