Momentous, significant, setting or sealing ones fate. (adjective)
Determined in advance by fate, fated. (adjective)
Examples of word fateful
I also uploaded the userpic I've used here as one of my photos - as it is obviously my smouldering wicked temptress photo. * chortle chortle* Actually, that stare is something James should be familiar with, as I think I used it quite a bit during a certain fateful night in Klute.
Do you still recall the fateful night we crossed the Rio Grande?
Dad recalled the fateful day he lost his son to CNN ` s Larry King.
Those same names appeared again and again in the records, eventually acquiring a surname that recalled the fateful moment of their resurrection.
All-American called a fateful timeout his team did not have.