daydreaming

the state of being lost in thought if you're bored while traveling, daydreaming is a perfectly normal state to be in, regardless of what the road signs say Synonyms reverie, study, trance, woolgatheringRelated Words contemplation, meditation, musing; absentmindedness, absorption, abstraction, preoccupation; chimera, conceit, daydream, delusion, dream, fancy, fantasy (also phantasy), figment, hallucination, illusion, phantasm (also fantasm), pipe dream, unreality, vision