| fickle(melancholy, miserable, unstable, changeable, temperamental) |
| fitful(melancholy, miserable, unstable, changeable, temperamental) |
| flat tire(expression, adjective, dull, flat, low) |
| flighty(melancholy, miserable, unstable, changeable, temperamental) |
| forlorn(adjective, bad, blue, sad, unhappy) |
| frowning(low, gloomy, miserable, unstable, depressed) |
| funereal(adjective, sad, unhappy, gloomy, miserable) |
| grouchy(low, gloomy, miserable, depressed, pessimistic) |
| gruff(low, gloomy, miserable, depressed, pessimistic) |
| harsh(low, gloomy, miserable, depressed, pessimistic) |
| having blue devils(expression, idiom, low, gloomy, depressed) |
| having the blahs(expression, idiom, low, gloomy, depressed) |
| heavy-hearted(adjective, dull, bad, low, sad) |
| heavyhearted(adjective, blue, sad, unhappy, gloomy) |
| ill-humored(low, gloomy, melancholy, miserable, unstable) |
| ill-tempered(low, gloomy, miserable, unstable, depressed) |
| impulsive(melancholy, miserable, unstable, changeable, temperamental) |
| in a bad mood(expression, idiom, low, gloomy, depressed) |
| in a huff(expression, idiom, melancholy, miserable, unstable) |
| in the doldrums(expression, adjective, idiom, sad, miserable) |