carelessness

n. lack of caution; indifference

Carelessness is lack of concern about the consequences of an action, and by extension, the behavior that results from that lack of concern. Carelessness has been hypothesized to be one possible cause of accident-proneness.
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Noun
1. the quality of not being careful or taking pains
(antonym) carefulness
(hypernym) attentiveness
(hyponym) incaution, incautiousness
2. failure to act with the prudence that a reasonable person would exercise under the same circumstances
(synonym) negligence, neglect, nonperformance
(hypernym) nonaccomplishment, nonachievement
(hyponym) dereliction

(n.)
The quality or state of being careless; heedlessness; negligenece; inattention.
  

n.
اچنتائي , بے فکري , بے پروائي , بے احتياطي , غفلت , بے سرتي