hazardous

形容词 hazardous:

1. involving risk or danger
   同义词：risky, wild

1. Investment is a hazardous business; even those who are in the swim sometimes come a cropper.
   投资是一项风险事业，就是那些懂行的人有时也会栽跟头。
2. Free of a difficult or hazardous situation; in a position of safety or security.
   脱离险境脱离困难或危险的情况; 处于安全或保险的位置

haz.ard.ous

adj.（形容词）
Marked by danger; perilous.
带有危险性的；危险的
Depending on chance; risky.
靠运气的；冒险的

【引伸】
haz.ardously
adv.（副词）
haz.ardousness
n.（名词）