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Synonyms

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.

See Examples For:

Only the truly inattentive will be shocked that complications ensue.

From The Wall Street Journal Jun. 12, 2026

Jurors ultimately decided that Penny was not guilty of criminally negligent homicide, which “involves causing someone's death by acting in a manner that was reckless, inattentive, or careless.”

From Salon Dec. 9, 2024

A new study calculates that exposure to car exhaust from leaded gas during childhood altered the balance of mental health in the U.S. population, making generations of Americans more depressed, anxious and inattentive or hyperactive.

From Science Daily Dec. 4, 2024

Both conditions can make a child seem disorganized or inattentive; in the case of NVLD, it’s because they don’t understand the assignment being discussed.

From Los Angeles Times Aug. 23, 2024

"I see. Very well, then. It was years ago, Gabe. You were a little boy. I remember how mischievous you were in school. Sometimes inattentive."

From "Son" by Lois Lowry

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