fateful
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(s) having momentous consequences; of decisive importance
- "that fateful meeting of the U.N. when...it declared war on North Korea"- Saturday Rev
- the fatal day of the election finally arrived
- (s) ominously prophetic foreboding, portentous,
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(s) (of events) having extremely unfortunate or dire consequences; bringing ruin
- the stock market crashed on Black Friday
- a calamitous defeat
- the battle was a disastrous end to a disastrous campaign
- "such doctrines, if true, would be absolutely fatal to my theory"- Charles Darwin
- "it is fatal to enter any war without the will to win it"- Douglas MacArthur
- a fateful error
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(s) controlled or decreed by fate; predetermined
- a fatal series of events