1. A lack of attentiveness (as to children or helpless people)
   - inattentiveness 
2. The trait of acting rashly and without prudence
   - mindlessness, rashness 
3. The trait of forgetting or ignoring your responsibilities
   - unmindfulness, inadvertence, inadvertency

Derived forms: heedlessnesses

See also: heedless

Type of: attentiveness, imprudence, inattention

Antonym: heedfulness

• swaggerer
• swaggering
• swaggie
• swagman
• Swahili
• swain
• Swainsona
• Swainsona galegifolia
• Swainsona grandiflora
• Swainsona greyana
• swale
• swallow
• swallow dive
• swallow hole
• swallow shrike
• swallow up
• swallow-tailed
• swallow-tailed coat
• swallow-tailed hawk
• swallow-tailed kite
• swallowtail
• swallowwort
• swami
• Swammerdam
• swamp