'Thoughtlessness' definitions:

Definition of 'thoughtlessness'

From: WordNet
noun
The quality of failing to be considerate of others [syn: inconsideration, inconsiderateness, thoughtlessness] [ant: considerateness, consideration, thoughtfulness]
noun
The trait of not thinking carefully before acting [syn: unthoughtfulness, thoughtlessness] [ant: thoughtfulness]

Definition of 'Thoughtlessness'

From: GCIDE
  • Thoughtless \Thought"less\, adv.
  • 1. Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act. [1913 Webster]
  • 2. Giddy; gay; dissipated. [R.] --Johnson. [1913 Webster]
  • 3. Deficient in reasoning power; stupid; dull. [1913 Webster]
  • Thoughtless as monarch oaks that shade the plain. --Dryden. [1913 Webster] -- {Thought"less*ly}, adv. -- {Thought"less*ness}, n. [1913 Webster]

Synonyms of 'thoughtlessness'

From: Moby Thesaurus

Words containing 'Thoughtlessness'