IMPERVIOUSNESS

Pronunciation (US):

(GB):

 Dictionary entry overview: What does imperviousness mean? 

• IMPERVIOUSNESS (noun)
  The noun IMPERVIOUSNESS has 1 sense:

1. the quality of being impenetrable (by people or light or missiles etc.)

  Familiarity information: IMPERVIOUSNESS used as a noun is very rare.

 Dictionary entry details 

• IMPERVIOUSNESS (noun)

Sense 1

Meaning:

The quality of being impenetrable (by people or light or missiles etc.)

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

impenetrability; imperviousness

Hypernyms ("imperviousness" is a kind of...):

quality (an essential and distinguishing attribute of something or someone)

Antonym:

perviousness (the quality of being penetrable (by people or light or missiles etc.))

Derivation:

impervious (not admitting of passage or capable of being affected)