| pensiveness(noun, thoughtfulness, musing, reflectiveness) |
| contemplativeness(noun, thoughtfulness, musing, reflectiveness) |
| brooding |
| absent-mindedness(thoughtfulness, musing, reflectiveness) |
| absorption(thoughtfulness, musing, reflectiveness) |
| abstraction(thoughtfulness, musing, reflectiveness) |
| blahs(thoughtfulness, musing, reflectiveness) |
| blue devils(expression, thoughtfulness, musing, reflectiveness) |
| blue funk(expression, thoughtfulness, musing, reflectiveness) |
| blues(thoughtfulness, musing, reflectiveness) |
| boredom(thoughtfulness, musing, reflectiveness) |
| broodiness(noun, pensiveness, reflectiveness) |
| bummer(thoughtfulness, musing, reflectiveness) |
| castle-building(thoughtfulness, musing, reflectiveness) |
| castles in the air(expression, idiom, thoughtfulness, musing, reflectiveness) |
| contemplation(thoughtfulness, musing, reflectiveness) |
| daydream(thoughtfulness, musing, reflectiveness) |
| dejection(thoughtfulness, musing, reflectiveness) |
| depression(thoughtfulness, musing, reflectiveness) |
| despair(thoughtfulness, musing, reflectiveness) |