"inattentive" in the adjective sense
1. inattentive
showing a lack of attention or care
"inattentive students"
"an inattentive babysitter"
2. inattentive, neglectful
not showing due care or attention
"inattentive students"
"an inattentive babysitter"
"neglectful parents"
Source: WordNet® (An amazing lexical database of English)
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