• chancy, dicey, fraught with risk, hairy, hazardous, risky, sticky, venturesome
• to run a risk, to run risk, to take one's chance, to take risk, to take risks
• to take a chance for sy
• to take a chance for sy
• to cut it fine, to run it fine
• insurance against all risks
• to run the risk of, to take the risk of
• to cast in one's lot with sy
• to cast in one's lot with sy