Synonyms for nonporous
- close
- close-grained
- compact
- compressed
- concentrated
- concrete
- condensed
- congealed
- dense
- fine-grained
- hard
- hardened
- heavy
- impenetrable
- impermeable
- impervious
- inelastic
- jelled
- refractory
- rigid
- set
- solid
- solidified
- stiff
- sturdy
- substantial
- thick
- tough
- unyielding
MOST RELEVANT
impermeable
adjective. impenetrable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.