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Definition of unpotable

unpotable

/ʌnˈpoʊtəbəl/
un · po · ta · ble
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unpotable Lexical Profile

unpotable Game Scores & Validity

• adjective

1

Unfit or unsafe for human consumption as a drink, especially regarding contaminated or untreated water.

Example

"After the severe flooding, the local well water became completely unpotable until it was boiled and filtered."

Synonyms
View all synonyms for unpotable
Antonyms
View all antonyms for unpotable

Word Nuance & Usage

Both 'unpotable' and 'nonpotable' (or 'non-potable') mean unsafe to drink, though 'nonpotable' is far more common on official warning signs, municipal pipes, and public health notices.

• Rhymes for unpotable

• Nearby Words

unpopulated
unposed
unposted
unpotable
unpoured
unpowered
unpractical

Word Origin & Etymology

Formed by adding the Old English negative prefix 'un-' to 'potable', which derives from Late Latin 'potabilis' (drinkable), from Latin 'potare' (to drink).

Cite this Entry

Wordmom. (2026). Definition of Unpotable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unpotable
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