adj.无所需求的,充裕的
It was wanton, moronic vandalism.
这是无端、愚蠢的恶意破坏。
a wanton disregard for human life
全然不顾人的死活
Wanton violence is now becoming a regular feature of urban life.
肆无忌惮的暴行在城市生活中越来越司空见惯。