brown study (n.)
- absentmindedness
- absorption
- abstractedness
- abstraction
- bemusement
- concentration
- contemplativeness
- daydream
- daydreamer
- daydreaming
- dream
- dreaming
- engrossment
- fantasy
- incubus
- melancholy
- muse
- musing
- nightmare
- pensiveness
- preoccupation
- reflectiveness
- reverie
- speculativeness
- stargazing
- study
- thoughtfulness
- trance
- vision
- wistfulness
- woolgathering
