Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
The state of being impervious.
The quality of being unable to be affected.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
The state of being impervious.
The ability to prevent any penetration.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Synonyms: impenetrability, impermeability
Antonyms: none provided
noun
the quality of being impenetrable (by people or light or missiles etc.)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: impenetrability
Antonyms: perviousness
Broader terms: quality
History
Etymology tree English impervious Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English imperviousness From impervious + -ness.
Across languages
12 source translations are retained for this English entry.
