The once pristine streams became polluted, the water undrinkable. Drinking water of the town is unhygienic, having plentiful salt making it undrinkable. Water supplies on Nui were contaminated by seawater and rendered undrinkable. Diacetyl rarely taints wine to levels where it becomes undrinkable. This disastrous leak rendered the water undrinkable. Nearby Soda Lake is an alkali lake and undrinkable. Wine faults are generally major attributes that make a wine undrinkable to most wine tasters. The name is a reference to the lake's salty, undrinkable water. Today, all the wells in the Territory are infected with cholera or contaminated and undrinkable. Bread was nowhere to be found, and tap water was undrinkable. He and Liz taste it, and realize that it is practically undrinkable. This process renders the fuel-grade ethanol undrinkable. Dumping the ballast can change the aquatic ecosystems and even make the water undrinkable. Ultimately the quality of the wine is reduced, making it less appealing and sometimes undrinkable. Rubbing alcohol is undrinkable even if it is ethanol based, due to the bitterants added.