Meaning & Definition of word "Impervious"

Impervious

/ɪmˈpɜːrviəs/

adjective:

  • 1. Not able to be affected by something.
    • Example: The new coating on the roof is impervious to rain.
  • 2. Not allowing fluid to pass through; waterproof.
    • Example: The impervious membrane kept the water from seeping inside.
  • 3. Impenetrable; unable to be passed or entered.
    • Example: His fierce demeanor made him impervious to criticism.
  • 4. Incapable of being influenced or affected.
    • Example: She appeared impervious to the stress of her job.

Etymology

Latin 'impervius', from 'in-' meaning 'not' and 'pervius' meaning 'passable'.

Common Phrases and Expressions

impervious to criticism:

Unwilling or unable to be swayed by negative feedback.

impervious surface:

A surface that does not allow water to penetrate.

impervious barrier:

A barrier that prevents any passage or entry.

Related Words

impassable:

Not able to be passed or crossed.

unresponsive:

Not reacting or responding to stimuli.

resilient:

Able to withstand or recover quickly from difficult conditions.

Slang Meanings of impervious

Meaning: Tough as nails.

Example Sentence: That guy is tough as nails; he's completely impervious to pain.

Meaning: Rock solid.

Example Sentence: Her confidence is rock solid; she's impervious to doubt.