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inattentive

American  
[in-uh-ten-tiv] / ˌɪn əˈtɛn tɪv /

adjective

  1. not attentive; negligent.

    Inattentive or careless driving is a serious issue, and cell phones clearly contribute to it.

    Synonyms:
    thoughtless, slipshod, slapdash, remiss, regardless, neglectful, irresponsible, careless
    Antonyms:
    mindful, thoughtful, careful
  2. characterized by or exhibiting a lack of focus or concentration.

    Most children are occasionally inattentive, distractible, impulsive, or highly active.

    Synonyms:
    oblivious, faraway, dreamy, distracted, abstracted, absent-minded, absent, ditzy, unmindful, heedless, distrait, preoccupied
    Antonyms:
    mindful, thoughtful, careful

inattentive British  
/ ˌɪnəˈtɛntɪv /

adjective

  1. not paying attention; heedless; negligent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of inattentive

First recorded in 1735–45; in- 3 + attentive

Explanation

Someone who's inattentive isn't paying enough attention. An inattentive lunch companion might spend the whole meal texting on his phone. Inattentive people are sometimes distracted, like an inattentive babysitter who loses track of the kids he's watching at the playground. You can also be inattentive simply through indifference or boredom — if you're inattentive at the opera, you're not paying attention to it because you're not interested in it. Inattentive tacks the "not" prefix in- onto attentive, from the Latin root attendere, "give heed to" or "stretch toward."

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Vocabulary lists containing inattentive

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Inattentive ball security has caused the Midshipmen’s rushing attack to suffer mightily as well.

From Washington Post • Sep. 20, 2012

Inattentive readers of movie timetables who are looking for Jim Mickle’s “Stake Land,” a recently released zombie film, but accidentally wander into “SKATELAND” are going to be perplexed.

From New York Times • May 6, 2011

Being Inattentive As any seasoned bowhunter knows, a shot at a quality animal is a precious commodity.

From Time Magazine Archive

Inattentive to every other subject, Dr. Beaumont perceived that he was roused by the name of Walter De Vallance, and therefore led Eustace to describe his present situation.

From The Loyalists, Vol. 1-3 An Historical Novel by West, Jane

The Conduct of the pupil is marked under the head of General Deportment, with the following degrees: Excellent, Good, Tolerable, Unsatisfactory, Inattentive, Idle, Disorderly, Disrespectful, Careless.

From A Narrative of the Life of Rev. Noah Davis, A Colored Man Written by Himself, At The Age of Fifty-Four by Davis, Noah