chancy

adjectives

of uncertain outcome; especially fraught with risk

"an extremely dicey future on a brave new world of liquid nitrogen, tar, and smog"- New Yorker

chanceful, chancy, dicey, dodgy

is derived from

subject to accident or chance or change

"a chancy appeal at best"; "getting that job was definitely fluky"; "a fluky wind"; "an iffy proposition"

chancy, flukey, fluky, iffy