- not paying enough attention to what one does: a careless typist.
- not exact, accurate, or thorough: careless work.
- done or said heedlessly or negligently; unconsidered: a careless remark.
- not caring or troubling; having no care or concern; unconcerned (usually followed by of, about, or in): careless of the rights of others; careless about one’s behavior; careless in speech.
- possessed or caused without effort or art; unstudied: careless beauty.
- Archaic. free from anxiety.
- done with or acting with insufficient attention; negligent
- (often foll by in, of, or about) unconcerned in attitude or action; heedless; indifferent (to)she’s very careless about her clothes
- (usually prenominal) carefree
- (usually prenominal) unstudied; artlessan impression of careless elegance
Old English carleas “free from anxiety; unconcerned,” from care (n.) + -less; a compound probably from Proto-Germanic. Original senses extinct by mid-17c.; main modern meaning “not paying attention, inattentive, not taking due care” is first recorded 1560s (in carelessly).