dicey

adjective3

1. •
   Fraught with danger.
2. •
   Of uncertain, risky outcome.

   • This was a dicey stratagem because all too often the support Britain rendered played into Zanu-PF's anti-colonial constructions. — 2009
3. •
   Of doubtful or uncertain efficacy, provenance, etc.; dodgy.

   • As if I'm not a bit past that, Clem thought, as if with his dicey ticker and all he shouldn′t be taking life pretty quietly, instead of waking with the old memoroes disturbing him. — 1992