| abstraction(noun, state, study, class, exercise) |
| cogitation(noun, study, understanding, philosophy, idea) |
| concentration(noun, study, class, exercise, thought) |
| dreamy(adjective, excellent, gentle, careless, indifferent) |
| lost(adjective, set, intense, careless, indifferent) |
| thoughtfulness(noun, reflectiveness) |
| wistfulness(noun, thought, thoughtfulness, vagueness, pensiveness) |
| absent-minded(noun, adjective, careless, distracted, abstracted) |
| absorbed(adjective, set, reasonable, keen, intense) |
| brown study(noun, expression, idiom, thought, dream) |
| cerebration(noun, understanding, philosophy, idea, attention) |
| engrossment(noun, thought) |
| imagining(noun, verb, concept, understanding, trip) |
| in the clouds(noun, expression, idiom, inattention) |
| lost in thought(expression, adjective, idiom, keen, thought) |
| lucubration(noun, thought) |
| rapt(adjective, set, intense, careless, indifferent) |
| reflexion |
| absent(adjective, careless, indifferent, apathetic, distracted) |
| analysis(noun, study, class, exercise, thought) |