fate|ful «FAYT fuhl», adjective.
1. controlled by fate: »

The fateful course of the ship toward the rocks was not changed in spite of the crew's frantic efforts.

2. determining what is to happen; important; decisive: »

a fateful decision. Yorktown was the site of a fateful battle of the American Revolution.

3. showing what will happen according to fate; prophetic: »

the fateful words of the prophet.

4. causing death, destruction, or ruin; disastrous: »

a fateful blow. The soldier's fateful steel (Joel Barlow).

fate´ful|ly, adverb.
fate´ful|ness, noun.

Useful english dictionary. 2012.