thoughtful in WordNet English dictionary

1. taking heed; giving close and thoughtful attention
   "heedful of the warnings"; "so heedful a writer"; "heedful of what they were doing"
   heedful  attentive  thoughtful  paying attention 
   
2. acting with or showing thought and good sense
   "a sensible young man"
   thoughtful  serious-minded 
   
3. exhibiting or characterized by careful thought
   "a thoughtful paper"
   thoughtful 
   
4. considerate of the feelings or well-being of others
   thoughtful 
   
5. having intellectual depth
   "a deeply thoughtful essay"
   thoughtful