attentive

/əˈtɛntɪv/
/əˈtɛntɪv/

adjective

  1. Paying attention; noticing, watching, listening, or attending closely.

    "She is an attentive listener, but does not like to talk much."

  2. Courteous; mindful.

    "a husband attentive to his wife's needs"

Synonyms: audient, mindful, reckful
Antonyms: inattentive, reckless