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Definition of sinkhole

sinkhole

/ˈsɪŋk.hoʊl/
sink · hole
Plural:sinkholes
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sinkhole Lexical Profile

sinkhole Game Scores & Validity

• noun

1

A natural cavity or depression in the ground, especially in a limestone karst region, formed by water erosion and the collapse of a surface layer, often providing a route for surface water to disappear underground.

Example

"Heavy seasonal rains caused a massive sinkhole to open beneath the highway."

2

A situation, enterprise, or project that consumes vast amounts of money, time, or resources without yielding a worthwhile return.

Example

"The outdated software migration quickly became a financial sinkhole for the company."

Synonyms
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Antonyms
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• Nearby Words

sinkbox
sinker
sinkful
sinkhole
sinkhole snake
sinless
sinner

Cite this Entry

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