CARELESSNESS
negligence, carelessness, neglect, nonperformance
(noun) failure to act with the prudence that a reasonable person would exercise under the same circumstances
carelessness, sloppiness
(noun) the quality of not being careful or taking pains
Source: WordNet® 3.1
Etymology
Noun
carelessness (countable and uncountable, plural carelessnesses)
Lack of care.
Synonyms
• inattention
• negligence
Antonyms
• carefulness
Anagrams
• racelessness
Source: Wiktionary
Care"less*ness, n.
Definition: The quality or state of being careless; heedlessness;
negligenece; inattention.
Source: Webster’s Unabridged Dictionary 1913 Edition