Synonyms of impervious in English:

impervious


See definition of impervious

adjective

1‘he seemed impervious to the chill wind’

SYNONYMS
unaffected by, untouched by, immune to, invulnerable to, insusceptible to, not susceptible to, proof against, unreceptive to, closed to, resistant to, indifferent to, heedless of, unresponsive to, oblivious to, unmoved by, deaf to
ANTONYMS

receptive to, susceptible to

2‘an impervious damp-proof course’

SYNONYMS
impermeable, impenetrable, impregnable, waterproof, watertight, water-resistant, water-repellent
sealed, hermetically sealed
rare imperviable
ANTONYMS

permeable