| Adj. | 1. | thoughtful - having intellectual depth; "a deeply thoughtful essay"profound - showing intellectual penetration or emotional depths; from the depths of your being; "the differences are profound"; "a profound insight"; "a profound book"; "a profound mind"; "profound contempt"; "profound regret" | |
| 2. | thoughtful - exhibiting or characterized by careful thought; "a thoughtful paper"considerate - showing concern for the rights and feelings of others; "friends considerate enough to leave us alone" thoughtless - showing lack of careful thought; "the debate turned into thoughtless bickering" | |
| 3. | thoughtful - acting with or showing thought and good sense; "a sensible young man"serious - concerned with work or important matters rather than play or trivialities; "a serious student of history"; "a serious attempt to learn to ski"; "gave me a serious look"; "a serious young man"; "are you serious or joking?"; "Don't be so serious!" | |
| 4. | thoughtful - taking heed; giving close and thoughtful attention; "heedful of the warnings"; "so heedful a writer"; "heedful of what they were doing" | |
| 5. | thoughtful - showing consideration and anticipation of needs; "it was thoughtful of you to bring flowers"; "a neighbor showed thoughtful attention"considerate - showing concern for the rights and feelings of others; "friends considerate enough to leave us alone" | |