Synonyms, Thesaurus & Antonyms of 'thoughtlessness'
Princeton's WordNet
1. (noun)inconsideration, inconsiderateness, thoughtlessness the quality of failing to be considerate of others Synonyms: unthoughtfulness, thoughtlessness, inconsiderateness, inconsideration Antonyms: thoughtfulness, consideration, considerateness
2. (noun)unthoughtfulness, thoughtlessness the trait of not thinking carefully before acting Synonyms: unthoughtfulness, thoughtlessness, inconsiderateness, inconsideration Antonyms: considerateness, thoughtfulness, consideration
Synonyms, Thesaurus & Antonyms of 'thoughtlessness'
English Synonyms and Antonyms
1. thoughtlessness Neglect (L. nec, not, and lego, gather) is the failing to take such care, show such attention, pay such courtesy, etc., as may be rightfully or reasonably expected. Negligence, which is the s Synonyms: neglect, carelessness, heedlessness, negligence, scorn, default, inadvertence, omission, slackness, disregard, inattention, oversight, slight, disrespect, indifference, remissness, thoughtlessness, failure, neglectfulness
Synonyms for thoughtlessness 
