périlleux[Français]

adjectif satellite
1 : of uncertain outcome; especially fraught with risk; "an extremely dicey future on a brave new world of liquid nitrogen, tar, and smog"- New Yorker
2 : involving risk or danger; "skydiving is a hazardous sport"; "extremely risky going out in the tide and fog"; "a wild financial scheme"
adjectif
1 : willing to undertake or seeking out new and daring enterprises