Dictionary.com
Thesaurus.com

undrinkable

British  
/ ʌnˈdrɪŋkəbəl /

adjective

  1. not pleasant or safe enough to be drunk

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Down the winding, two-lane roads that connect communities, a pastor organizes bottled-water drives for neighbors whose tap water is undrinkable, while the local utility patches together funding for long-term solutions.

From The Wall Street Journal • Dec. 17, 2025

Flowing water has become first undrinkable, then unswimmable, and now in places even untouchable without falling sick.

From Salon • May 28, 2025

"We know it is undrinkable water, and we still drink it," he went on.

From BBC • May 22, 2025

Had DWP held water in the reservoir with a ripped cover, the water would have been legally undrinkable except in emergencies.

From Los Angeles Times • Jan. 10, 2025

The rations are long gone, the canteens are empty, and the sludge in the bottom of the bucket full of paintbrushes is undrinkable.

From "All the Light We Cannot See" by Anthony Doerr