noun
1. the quality of failing to be considerate of others
• Syn: ↑inconsideration, ↑inconsiderateness
• Ant: ↑thoughtfulness, ↑consideration (for: ↑inconsideration)
• Derivationally related forms: ↑inconsiderate, ↑inconsiderate (for: ↑inconsiderateness)
• Hypernyms: ↑unkindness
• Hyponyms: ↑tactlessness, ↑bluntness
2. the trait of not thinking carefully before acting
• Syn: ↑unthoughtfulness
• Ant: ↑thoughtfulness (for: ↑unthoughtfulness)
• Derivationally related forms: ↑thoughtless, ↑unthoughtful (for: ↑unthoughtfulness)
• Hypernyms: ↑trait
• Hyponyms: ↑recklessness, ↑foolhardiness, ↑rashness, ↑impulsiveness
Useful english dictionary. 2012.