Synonyms of inattentive in English:

inattentive


See definition of inattentive

adjective

1‘an inattentive pupil’

SYNONYMS
not concentrating, distracted, lacking concentration, preoccupied, absent-minded, daydreaming, dreamy, dreaming, wool-gathering, lost in thought, off in a world of one's own, in a brown study, with one's head in the clouds, abstracted, distrait, oblivious, not with us, unheeding
informal miles away
ANTONYMS

attentive, alert

2‘I was disappointed by the food and the inattentive service’

SYNONYMS
negligent, neglectful, remiss, slack, sloppy, slapdash, lackadaisical, lax
forgetful, careless, thoughtless, heedless, unthinking
indifferent, unconcerned, inconsiderate
ANTONYMS

attentive