1. (

• chancy ,
• chanceful ,
• dicey ,
• dodgy

) 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. (

• chancy ,
• fluky ,
• flukey ,
• iffy

) subject to accident or chance or change; "a chancy appeal at best"; "getting that job was definitely fluky"; "a fluky wind"; "an iffy proposition" ;