- Changing zero minus zero is foreboding - Foreboding evil - Portending evil - Sinister - Threatening - Of or pertaining to an omen or to omens; being or
exhibiting an omen; significant; portentous; -- formerly used both in a
favorable and unfavorable sense; now chiefly in the latter; foreboding
or foreshowing evil; inauspicious; as, an ominous dread.
- Previous sentiment, conception, or opinion; previous
apprehension; especially, an antecedent impression or conviction of
something unpleasant, distressing, or calamitous, about to happen;
anticipation of evil; foreboding.