"Chancy" means something that is uncertain or risky, where the outcome or result could go either way.
Sentences with «chancy»
But if you try to analyze it as a business deal, it's as chancy as a 6Ã «6 tiebreaker. (inc.com)
(In the expanding - economy sense, that it's easier to experiment with chancy new functionality if you don't, at the same time, have to compact or eliminate some existing function. (williamcalvin.com)
Tyler's brave and poignant description of the low pay, insecurity, chancy benefits, difficulty securing maternity leave, and general discouragement that many postdocs endure was effective. (sciencemag.org)