Portentous (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">portentous</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ominous that I've seen before include "Boding ill" , "Boding badly, menacing" , "Foreboding, menacing" , "Threatening, looks bad" , "Portending something bad" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">portentous</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that portentous can be written as fateful)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fateful that I've seen before include "Ominous" , "Prophetic - portentous" , "Dire in its implications" , "critical" , "Portentous; bringing death" .)