attentive

Adjective

• taking heed; giving close and thoughtful attention
  • heedful of the warnings
    
  • so heedful a writer
    
  • heedful of what they were doing
    

• (often followed by `to') giving care or attention
  • attentive to details
    
  • the nurse was attentive to her patient
    
  • an attentive suitor
    

Related words

• Synonyms: 
  heedful , thoughtful , paying attention
• Antonyms: 
  heedless , unheeding , inattentive