chancy 
/ˈtʃænsi, Brit ˈtʃɑ:nsi/ adjective
chanc·i·er; chanc·i·est /ˈtʃænsi, Brit ˈtʃɑ:nsi/ adjective [also more chancy; most chancy] informal : possibly having a bad result : involving chance or risk : risky
▪ Building your own home is a chancy business. ▪ Opening a new restaurant can be chancy.
▪ Building your own home is a chancy business. ▪ Opening a new restaurant can be chancy.
