undrinkable
- a unsuitable for drinking
- Like many Zanesville area residents, he couldn't drill a well because the surrounding coal mines have contaminated the water, rendering it undrinkable.
- I also learned that you can make and apparently sell some truly disgusting wine: six of the bottles I tried with a dozen friends were unanimously deemed "undrinkable.
- In May, a blue algae outbreak on picturesque Lake Tai in Wuxi city rendered tap water for 80% of the local families undrinkable for a week.