Definition of inattentiveness in US English:

inattentiveness

noun

  • See inattentive

    • ‘Although ADHD can account for hyperactivity or inattentiveness, physicians should remember that these symptoms can also be caused by other disorders.’
    • ‘Cecily was frustrated at her friend's inattentiveness.’
    • ‘What's more, classroom inattentiveness and lack of focus (the fidget factor) among school-age children can in part be attributed to a lack of accurate fit between chair, desk and those who use them.’
    • ‘Cannabis use leads to delayed reactions and inattentiveness.’
    • ‘In more practical terms, many of the psychiatric medications cause lethargy and inattentiveness, and awkward explanations are required for long gaps in your employment history.’

Pronunciation

inattentiveness

/ˌɪnəˈtɛn(t)ɪvnəs//ˌinəˈten(t)ivnəs/