POROUS Synonyms: 18 Similar and Opposite Words

porous

adjective

ˈpȯr-əs

Definition of porous

as in penetrable

capable of being passed into or through a cleaner that should not be used on porous surfaces

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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.

Recent Examples of porous Blasted from porous lava rock, the canals have to be completely full for gravity to push water across the district’s more than 42,000 acres. — Emily Cureton Cook, ProPublica, 26 June 2026 Major organs start to shut down – the barriers that separate the gut from the rest of the intestines can become more porous, leaking deadly toxins into the bloodstream and the heart fails. — Taylor Ward, CNN Money, 24 June 2026 The stones are light and porous but surprisingly effective at removing stains without scratching delicate porcelain surfaces like toilets, bathtubs, sinks, and more, thanks to their gentle yet abrasive material. — Alicia Geigel, Southern Living, 6 July 2026 Unlike conventional porous carbons, which interact only weakly with polysulfides, COFs possess periodically arranged pores whose dimensions, chemical environments, and electronic characteristics can be programmed by design. — Prabhat Ranjan Mishra, Interesting Engineering, 4 July 2026 See All Example Sentences for porous

Recent Examples of Synonyms for porous

Adjective

The wall between the two has long been viewed as performative and penetrable.

— Seema Mehta, Los Angeles Times, 26 May 2026
By breaking actives down into smaller molecules, the fermentation process makes the ingredient more bioavailable and penetrable.

— Jenny Berg, Vogue, 23 Sep. 2025

Definition of penetrable

Adjective

Then, after about three days, the blood vessels that had become more permeable immediately after surgery to bring healing fluids to the face tighten back up again.

— Michele Promaulayko, Allure, 17 June 2026
Their results suggest that several factors worked together to sustain the underground environment, including highly permeable fractured rocks, lingering heat from the impact itself and the region's natural geothermal energy.

— Samantha Mathewson, Space.com, 10 June 2026

Definition of permeable

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porny

porous

port

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“Porous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/porous. Accessed 8 Jul. 2026.

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Synonyms of porous

adjective

Example Sentences

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