Noun
The quality or state of being careless; heedlessness; negligenece; inattention.
Source: Webster's dictionaryTo lose one parent may be regarded as a misfortune; to lose both looks like carelessness. Oscar Wilde
It is more from carelessness about truth than from intentionally lying that there is so much falsehood in the world. Samuel Johnson
Nothing is more deceitful than the appearance of humility. It is often only carelessness of opinion, and sometimes an indirect boast. Jane Austen
When is a revival needed? When carelessness and unconcern keep the people asleep. Billy Sunday
Carelessness is worse than a thief. Galician Proverb
Every day the harm arising from carelessness is endured. Turkish Proverb