That cannot be penetrated or passed through
Impossible to reach or enter
That cannot be wounded or injured
Completely sealed by fusion, soldering, etc. so as to keep air or gas from getting in or out; airtight
Susceptible to emotional injury, especially in being easily hurt:
Not susceptible to or admitting of:
Revealing no emotion; expressionless.
Leaving little empty space through compression; compact:
So snugly put together that no water can get in or through
That can be penetrated
That can be permeated; open to passage or penetration, esp. by fluids
Of or relating to secret or classified information:
Completely obvious; blatant:
unable to be penetrated
Relating to immunity or an immune response.
Of standard alcoholic strength:
Capable of, offering, or showing resistance. Often used in combination:
Of, tending toward, or marked by resistance:
Having the capacity to withstand
Open to arguments, ideas, or change; approachable.
Sensitive to, and readily reacting to, stimuli, changes, control mechanisms, etc.
Find another word for impervious. In this page you can discover 32 synonyms, antonyms, idiomatic expressions, and related words for impervious, like: impenetrable, unmoved, inaccessible, invulnerable, hermetic, vulnerable, unsusceptible, impassive, callous, tight and impassable.