Impermeable and Leaky
Opposite meaning words
Impermeable
Impermeable adjective - Not allowing penetration (as by gas, liquid, or light).
Usage example: an impermeable seal on the ancient tomb had preserved the artifacts exceptionally well
Leaky is an antonym for impermeable.
Nearby Word: impermeability
Leaky
Leaky adjective - Permitting the unwanted passage of fluids or gases.
Usage example: a leaky defense system
Impermeable is an antonym for leaky.
Cite this Source
Leaky and Impermeable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/impermeable/leaky
Impermeable & Leaky. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/impermeable/leaky>.
Leaky or Impermeable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/impermeable/leaky.
Google Ngram Viewer shows how "impermeable" and "leaky" have occurred on timeline