wantonly /BrE ˈwɒntənli

,
AmE ˈwɑnt(ə)nli
/ adverb
1 (gratuitously) [attack, destroy, ignore] senza ragione, ingiustificatamente; [cruel, destructive] senza ragione
2 literary (playfully) vivacemente
3 archaic (provocatively) [act, pose, smile] in modo provocante