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careless

/kɛɹ.ləs/adjective2 syllables

Careless means: marked by lack of attention or consideration or forethought or thoroughness; not careful.

Synonyms for careless29

adjective, as in marked by lack of attention or consideration or forethought or thoroughness; not careful

casual, cursory, passing, perfunctory, superficial, haphazard, slapdash, slipshod, sloppy, heedless, reckless, incautious, offhand, offhanded, imprudent, inattentive, negligent, unconcerned

adjective, as in (usually followed by ‘of’) without due thought or consideration

regardless, heedless, unheeding

adjective, as in effortless and unstudied

artless

also used for careless

derelict, irregardless, irrespective, lash, lax, neglectful, remiss, slack

Includes material from Wiktionary, CC BY-SA 4.0.

Opposites of careless

careful

What does careless mean?3

adjective

1

marked by lack of attention or consideration or forethought or thoroughness; not careful“careless about her clothes”

2

(usually followed by ‘of’) without due thought or consideration“careless of the consequences”

3

effortless and unstudied“an impression of careless elegance”

Definitions from the Open English WordNet, CC BY 4.0.

Careless in a sentence

  • When you lack sleep, you are apt to be careless.unknown
  • If you weren't careless, your word processor wouldn't break down.unknown
  • He made a careless mistake, as is often the case with him.unknown
  • He is clever, but on the other hand he often makes careless mistakes.CM
  • He makes careless mistakes, and does so frequently.unknown
  • She was careless with money, so now she's in trouble financially.AnneWy
  • Careless as she was, she could never pass an examination.unknown
  • Confused by her careless mistake, she burst into tears.unknown

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.