Definition of porousnext
as in penetrable
capable of being passed into or through a cleaner that should not be used on porous surfaces

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

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 Harsh chemicals are prone to damaging grout over time, which can lead to issues like grout becoming porous and then collecting toxic fumes from cleaners that are then released back into the air. Ashlyn Needham, Southern Living, 2 May 2026 The risk of insecurity spreading across West Africa’s porous borders, even affecting stable democracies such as Senegal and Ghana, is real. Ulf Laessing, semafor.com, 30 Apr. 2026 Rather than replacing the island’s aging pipe system, the approach would largely rely on the existing drainage network to collect rainwater and funnel it into wells, where it would be injected below the surface into porous rock formations. Ashley Miznazi, Miami Herald, 28 Apr. 2026 The dust has officially settled from the NFL draft, as the Dallas Cowboys have put in the bulk of their offseason work on reconstructing a porous defense from 2025 that ranked 30th in yards allowed and last in points allowed. Nick Harris, Fort Worth Star-Telegram, 28 Apr. 2026 See All Example Sentences for porous
Recent Examples of Synonyms for porous
Adjective
  • By breaking actives down into smaller molecules, the fermentation process makes the ingredient more bioavailable and penetrable.
    Jenny Berg, Vogue, 23 Sep. 2025
  • Bouncing back seven years after the barely penetrable Sunset, the Hungarian director’s new film takes its time to kick in but is a uniquely personal coming-of-age drama.
    David Rooney, HollywoodReporter, 28 Aug. 2025
Adjective
  • Replacing concrete in parking lots with more permeable materials, such as grass tiles, would also be beneficial.
    Adam Kovac, Scientific American, 22 Apr. 2026
  • The plastic wrap is permeable enough for air to get in.
    Lisa Cericola, Southern Living, 19 Apr. 2026

Browse Nearby Words

Cite this Entry

“Porous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/porous. Accessed 9 May. 2026.

More from Merriam-Webster on porous

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster