| A | B |
| ominous | a foreshadowing of the future that describes it in threatening or menacing terms |
| portentous | describes something carrying a sign of the threats of the future and also means pretentious or pompous |
| inauspicious | promising failure or bad luck |
| auspicious | predicting something favorable |
| imminent | something about to occur for good or bad |
| impending | refers to something threatening or not; it is near arrival of the event (see imminent) |
| minatory | always threatening |
| presage | a forewarning or a prediction of something bad |
| bode | a sign of something bad |
| forebode | a sign of something really bad |
| propitiate | forces of good or evil are appeased or calmed |
| harbinger | an early warning or messenger of what’s to come |