adjective
not paying proper attention
an inattentive pupil dozing at his desk
Synonyms: inobservant, unheeding, unnoticing, unobservant, unobserving, unperceiving, unwatchful
Related Word: distracted, distrait, distraught; careless, heedless, thoughtless, undiscerning, unmindful, unthinking; bored, ennuyé
Antonyms: attentive; observant