leakier; leakiest
: permitting fluid to leak in or out
leakily adverb
leakiness noun

Examples of leaky in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Sealing gaps or cracks with caulk prevents the hot air from coming in, but Wilkins says sometimes the main source of heat comes from old, leaky windows. Ashlyn Needham, Southern Living, 21 June 2025 But considering the several regulations already in place, this aspect of the ship of state is a very leaky boat indeed, as new investigations show that 11 California law enforcement agencies broke this law last month alone, with 10 of those agencies being from Southern California counties. The Editorial Board, Oc Register, 20 June 2025 Among the problems the storied institution must deal with are a leaky roof and climate control issues. News Desk, Artforum, 10 June 2025 In her 40s, she was diagnosed with a leaky mitral valve. Vanessa Etienne, People.com, 12 June 2025 See All Example Sentences for leaky

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of leaky was in the 15th century

Browse Nearby Words

Cite this Entry

“Leaky.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leaky. Accessed 2 Jul. 2025.

Kids Definition

leaky

adjective
leakier; leakiest
: permitting fluid to leak in or out
a leaky boat
leakiness noun

Medical Definition

leaky

adjective
: relating to or being a mutant gene that changes the structure of the protein and especially an enzyme that it determines so that some but not all of its biological activity is lost
also : being such a protein with subnormal activity

More from Merriam-Webster on leaky

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