Wanton/ˈwɑːntən/ Definition 1 of 4Pro Tip 1/3Beyond Carelessness Implies severely thoughtless actions affecting others deeply, not just casual neglect. His wanton disregard for safety put everyone at risk. Pro Tip 2/3Intense Neglect Use 'wanton' to describe extreme cases of neglect or apathy, more than simple oversight. The supervisor's wanton neglect of duty was shocking. Pro Tip 3/3Serious Consequences Often associated with actions that lead to serious harm or damage. The wanton vandalism of the park angered the community.