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Synonyms

careless

American  
[kair-lis] / ˈkɛər lɪs /

adjective

  1. not paying enough attention to what one does.

    a careless typist.

    Synonyms:
    reckless, indiscreet, unwary, incautious, inattentive
    Antonyms:
    careful
  2. not exact, accurate, or thorough.

    careless work.

    Synonyms:
    negligent, inaccurate
    Antonyms:
    careful
  3. done or said heedlessly or negligently; unconsidered.

    a careless remark.

    Synonyms:
    unmindful, unthoughtful
    Antonyms:
    careful
  4. not caring or troubling; having no care or concern; unconcerned (usually followed by of, about, orin ).

    careless of the rights of others;

    careless about one's behavior;

    careless in speech.

    Synonyms:
    inconsiderate, forgetful, thoughtless
    Antonyms:
    careful
  5. possessed or caused without effort or art; unstudied.

    careless beauty.

  6. Archaic. free from anxiety.


careless British  
/ ˈkɛəlɪs /

adjective

  1. done with or acting with insufficient attention; negligent

  2. unconcerned in attitude or action; heedless; indifferent (to)

    she's very careless about her clothes

  3. (usually prenominal) carefree

  4. (usually prenominal) unstudied; artless

    an impression of careless elegance

"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

  • carelessly adverb
  • carelessness noun
  • overcareless adjective
  • overcarelessly adverb

Etymology

Origin of careless

First recorded before 1000; Middle English; Old English carlēas; care, -less

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.

However, Baroness Kidron said it was "careless" of the prime minister to see the issue "through the lens of his own children".

From BBC

This evidently isn’t the first time he has been careless about a matter that touches her soul.

From The Wall Street Journal

‘I have a moral and ethical conundrum’: My husband was killed by a careless driver.

From MarketWatch

A van driver who crashed into a broken-down car in a smart motorway's fast lane has been found guilty of causing death by careless driving.

From BBC

Only months later, shortly before our 10th anniversary, my husband was killed by a careless driver.

From MarketWatch