heedlessness

Plural: heedlessnesses

Noun

• a lack of attentiveness (as to children or helpless people)
• the trait of acting rashly and without prudence
• the trait of forgetting or ignoring your responsibilities
• The state or character of being heedless

Synonyms

inadvertence, inadvertency, inattentiveness, mindlessness, rashness, unmindfulness, carelessness, inattention, thoughtlessness, unheed

Antonyms

attentiveness, heedfulness, mindfulness