adj ·Uncommon ·Advanced level

Definitions

Adjective

1. 1
   Having no pores, not penetrable, impervious. not-comparable

   "The plastic was a nonporous surface, so the ink couldn't sink in and stain it."

Adjective

1. 1
   not porous; especially not having vessels that appear as pores wordnet

Synonyms

All synonyms

closeclose-knitclose-texturedclose-wovencompactcompacted

Antonyms

All antonyms

porous

Example

More examples

"The plastic was a nonporous surface, so the ink couldn't sink in and stain it."

Etymology

From non- + porous.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.