Main entry: inattentive
Definition: showing a lack of attention or care
Usage: inattentive students; an inattentive babysitter
Antonyms: attentive
Definition: (often followed by `to') giving care or attention
Antonyms: present
Definition: being or existing in a specified place
Main entry: inattentive, neglectful
Definition: not showing due care or attention
Usage: inattentive students; an inattentive babysitter; neglectful parents
Antonyms: diligent
Definition: characterized by care and perseverance in carrying out tasks