hazardous

a. 危险的

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

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。