Synonyms of porous

porous

adjective

ˈpȯr-əs 

as in penetrable

capable of being passed into or through

a cleaner that should not be used on porous surfaces

Synonyms & Similar Words

• penetrable
• permeable
• absorbent
• pervious
• passable
• breathable

Antonyms & Near Antonyms

• impermeable
• impervious
• impenetrable
• impassable
• dense
• nonporous
• airtight
• thick
• compact
• watertight
• close

Example Sentences

Recent Examples of porous

As Macqueen explains, a Magic Eraser is made of melamine foam, a porous material that is water activated, gentle on surfaces, but tough on stains. — Stephanie Osmanski, Better Homes & Gardens, 16 July 2026

The homeowners also patched the roof of their house before rain fell that evening — a crucial step because the fragile meteor is porous and sucks in water from the air, Jenniskens said. — Ashley Strickland, CNN Money, 15 July 2026

The installations probe the increasingly porous boundaries between humans, technology, and the natural world, tackling digital identity, real-time data, and the passage of time. — Harrison Jacobs, ARTnews.com, 14 July 2026

It can also be incorporated into a porous silver texture and integrated with rigid devices. — Jennifer Ouellette, ArsTechnica, 14 July 2026