ENGLISH
REFERENCE

careless

adj.
US //ˈkɛɹɫəs// UK //kˈeələs// care·less
  1. 1 not paying attention (adj.)
    B1 Intermediate

    not giving enough attention or thought to what you are doing, which often causes mistakes.

    failing to give sufficient attention or thought to avoiding harm or errors.

    Example

    It was a careless mistake to leave the front door unlocked overnight.

    Example

    The accountant's careless handling of the tax filings resulted in a significant fine for the small business.

    Usage

    Often followed by the prepositions 'with' or 'about'.

    Pitfall
    He is careless for his health.
    He is careless with his health.

    Use 'with' when describing how someone treats a specific thing, or 'about' for general concerns.

  2. 2 unconcerned (adj.)
    B2 Upper Intermediate

    not worried or concerned about something, sometimes in a way that seems rude.

    displaying a lack of concern or interest; nonchalant regarding the feelings of others or the outcome of a situation.

    Example

    He gave a careless shrug when I asked him if he was coming to the party.

    Example

    Her careless attitude toward the project's failure deeply frustrated the rest of the team who had worked overtime.

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  1. 3 free from worry (adj.)
    C2 Proficiency Literary Archaic

    having no worries or problems to think about.

    characterised by a lack of anxiety or responsibility; free from the burdens of care.

    Example

    They spent a careless afternoon wandering through the old forest.

    Example

    In the poem, the author reflects on the careless days of his youth before the onset of war.

    Teacher's tip

    In modern English, 'carefree' is almost always used for this positive meaning; 'careless' is now almost exclusively negative.

Origin

From Middle English careles, from Old English carlēas (“careless, reckless, void of care, free from care, free”), equivalent to care + -less. Cognate with Icelandic kærulaus (“careless, negligent”).

Word family

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