Meaning & use
porous
Last updated
Full of tiny holes that allow liquid or air to pass through, or easily penetrated.
See it in a sentence
The porous rock absorbed water like a sponge.
Critics argued the border security system was too porous to be effective.
A note on using this word
Frequently used figuratively to describe systems, borders, or arguments that have too many gaps or weaknesses.
Words with a similar meaning
permeable
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
impermeablesolid
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