English

Definition of thoughtlessness noun from the Oxford Advanced Learner's Dictionary

 

thoughtlessness

 noun
noun
BrE BrE//ˈθɔːtləsnəs//
 
; NAmE NAmE//ˈθɔːtləsnəs//
 
[uncountable] (disapproving)
 
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the quality of not caring about the possible effects of your words or actions on other people I was hurt by her thoughtlessness.