Wanton (adj)
won-tun
(of a cruel or violent action) deliberate and unprovoked.
(dated) Sexually unrestrained or having many casual sexual relationships (typically used of a woman).
Middle English wantowen ‘rebellious, lacking discipline’, from wan- ‘badly’ + Old English togen ‘trained’ (related to team and tow).
Example sentences
“The wanton vandalism is hard to bear.”
“She was wild and wanton, virtually untameable.”
