| blankness |
| blockout(vagueness, amnesia, obliviousness) |
| blue devils(expression, melancholy, thoughtfulness, musing, languor) |
| blue funk(expression, melancholy, thoughtfulness, musing, languor) |
| blues(melancholy, thoughtfulness, musing, languor, pensiveness) |
| boredom(melancholy, thoughtfulness, musing, languor, pensiveness) |
| bummer(melancholy, thoughtfulness, musing, languor, pensiveness) |
| contemplativeness(thoughtfulness, musing, reflectiveness) |
| day-dream |
| dejection(melancholy, thoughtfulness, musing, languor, pensiveness) |
| depression(melancholy, thoughtfulness, musing, languor, pensiveness) |
| despair(melancholy, thoughtfulness, musing, languor, pensiveness) |
| desperation(melancholy, thoughtfulness, musing, languor, pensiveness) |
| despondency(melancholy, thoughtfulness, musing, languor, pensiveness) |
| dismals(melancholy, thoughtfulness, musing, languor, pensiveness) |
| dolefuls(melancholy, thoughtfulness, musing, languor, pensiveness) |
| dolor(melancholy, thoughtfulness, musing, languor, pensiveness) |
| down trip(expression, melancholy, thoughtfulness, musing, languor) |
| downer(melancholy, thoughtfulness, musing, languor, pensiveness) |
| doziness(noun, carelessness, inattention, daydreaming, inattentiveness) |