Meaning & use

careless

adjective·Everyday

Last updated

UK/ˈkeələs/
US/ˈkerləs/

Meanings

  1. adjectivecomparable

    Failing to pay enough attention to what you are doing, so that errors or damage are likely.

    Grammar: Can stand before a noun or after a verb: a careless error, he was careless.

    Patterns

    • careless with something
    • careless about something
    • careless of something

    A careless slip in the spreadsheet cost the team two days of rework.

    She was careless with her passport and left it on the train.

    It was careless of you to leave the stove on.

  2. adjectivebefore a nounliterary

    Relaxed and unworried, showing no effort or concern about how one appears or what others think.

    Grammar: Usually describes manner or style: a careless smile, careless elegance.

    He gave a careless shrug and walked out into the rain.

    Her careless grace made the dance look easy.

    They laughed with careless joy on the last day of school.

Word forms

comparativemore careless
superlativemost careless

Common combinations

careless mistake
I lost marks on a careless mistake in the last sum.
careless driving
He was fined for careless driving after clipping a parked car.
careless with money
Tom is careless with money and rarely checks his balance.
careless about safety
The crew had grown careless about safety checks.
careless talk
Careless talk at the party let the secret out.

Synonyms and how they differ

negligent
Negligent is stronger and more formal, suggesting a failure of duty that may carry legal or moral blame.
sloppy
Sloppy is informal and points to untidy, low-standard work rather than a single moment of inattention.
thoughtless
Thoughtless stresses not considering other people's feelings, where careless stresses not watching what you do.
reckless
Reckless implies knowingly taking big risks, while careless usually implies simply not noticing the risk.

Opposites

Word family

carelessly adverb
in a way that lacks attention
carelessness noun
the quality of not taking enough care
care noun
close attention to avoid harm or error
careful adjective
paying close attention to avoid errors

Commonly confused: careless or careful? careless or carefree?

careless vs careful

Careful means taking proper care; careless means not taking it. The suffix -less means without, not a gentler form.

careless vs carefree

Carefree means free from worries and is positive, while careless usually means inattentive and is negative.

Practice

The report was full of ____ errors because the writer had not checked it before sending.

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