wanton
adjective uk/ˈwɒn.tən/ us/ˈwɑːn.tən/
(WITHOUT CARE)
formal无节制的，过分的，恣意的;不负责的
(of something bad, such as damage, cruelty, waste) extreme and showing no care at all
wanton destruction of human life 草菅人命
a wanton disregard for safety 对安全极不负责
wanton extravagance 过度的铺张
(SEXUAL)
old use or humorous（女子）淫荡的，放荡的
(of a woman) behaving or appearing in a very sexual way