carelessness

noun
UK /ˈkeələsnəs/
US /ˈkerləsnəs/

Carelessness is not being careful.

His carelessness caused him to drop the glass.

SYNONYMS

negligencethoughtlessnessrecklessnessinattentionsloppiness

RELATED WORDS

mistakeaccidentforgetfulnesshastedistraction

OTHER MEANINGS

2. The state of being done without enough thought or effort.

The carelessness of the drawing made it hard to read.

3. A lack of concern about danger or risk.

Her carelessness with money left her with no savings.

4. The quality of not paying attention to details.

Carelessness in spelling can cost you points on the test.