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impermeability

im·per·me·a·bil·ity/ɪmˌpɝmi.əˈbɪlɪti/noun

impermeability is a noun meaning “the quality of being impermeable” (English Wiktionary, September 2026). It is spelled I-M-P-E-R-M-E-A-B-I-L-I-T-Y and has 6 syllables (im·per·me·a·bil·ity), and it appears about once in every 42 million words in written English (wordfreq, 2021 data). The plural of impermeability is impermeabilities.

What does impermeability mean?

noun

  1. 1

    the quality of being impermeable

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce impermeability?

  • US /ɪmˌpɝmi.əˈbɪlɪti/
  • UK /ɪmˌpɜːmi.əˈbɪlɪti/

Impermeability has 6 syllables, split im·per·me·a·bil·ity in writing.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of impermeability

  • impermeabilities plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is impermeability?

Impermeability appears about once in every 42 million words in written English, the 199,120th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Impermeability in Spanish, French, German and Portuguese

In the sense the quality of being impermeable:

LanguageWords
Frenchimperméabilité
Spanishimpermeabilidad

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does impermeability come from?

Borrowed from French imperméabilité.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).