adj · 3 senses · updated from the 2026-07-25 local source snapshot
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.
Sound
Pronunciation
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Received-Pronunciation:/ɪmˈpɜːmɪəbəl/
Southern-England:Recorded audio is listed in the source snapshot.
Multicultural British EnglishRecorded audio is listed in the source snapshot.
Canada, General-American:/ɪmˈpɝmɪəbəl/
Canada, General-American:/ɪmˈpɝmiəbəl/
Australian:/ɪmˈpɜːmɪəbəl/
1
adj
Meaning 1
Impossible to permeate.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adj
Meaning 2
Not allowing passage, especially of liquids; waterproof.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
adjective
Meaning 3
preventing especially liquids to pass or diffuse through
Definition source: Princeton WordNet 3.0
Examples
impermeable stone
an impermeable layer of scum
a coat impermeable to rain
Meaning relationships
Synonyms: none provided
Antonyms: permeable
History
Etymology
Apparently from im- + permeable. Compare French imperméable, from Latin impermeābilis, from im- + permeābilis (“permeable”).
Across languages
Translations
37 source translations are retained for this English entry.
Belarusian:
непранікальны
(njepranikalʹny)
— impossible to permeate
Bulgarian:
непроницаем
(nepronicaem)
— impossible to permeate
Bulgarian:
херметичен
(hermetičen)
— impossible to permeate
Catalan:
impermeable
— impossible to permeate
French:
imperméable
— impossible to permeate
Galician:
impermeábel
— impossible to permeate
German:
dicht
— impossible to permeate
Greek:
αδιαπέραστος
(adiapérastos)
— impossible to permeate
Indonesian:
kedap
— impossible to permeate
Irish:
neamh-thréscaoilteach
— impossible to permeate
Irish:
neamhscagach
— impossible to permeate
Latin:
impermeābilis
— impossible to permeate
Malay:
tak telap
— impossible to permeate
Māori:
tukukore
— impossible to permeate
Portuguese:
impermeável
— impossible to permeate
Russian:
непроницаемый
(nepronicajemyj)
— impossible to permeate
Spanish:
impermeable
— impossible to permeate
Swedish:
ogenomtränglig
— impossible to permeate
Swedish:
tät
— impossible to permeate
Tagalog:
dimatulot
— impossible to permeate
Welsh:
anathraidd
— impossible to permeate
Belarusian:
непрамакальны
(njepramakalʹny)
— not allowing passage of liquids
Bulgarian:
непромокаем
(nepromokaem)
— not allowing passage of liquids
Catalan:
impermeable
— not allowing passage of liquids
Finnish:
läpäisemätön
— not allowing passage of liquids
French:
imperméable
— not allowing passage of liquids
Galician:
impermeábel
— not allowing passage of liquids
German:
dicht
— not allowing passage of liquids
Greek:
αδιάβροχος
(adiávrochos)
— not allowing passage of liquids
Irish:
neamh-thréscaoilteach
— not allowing passage of liquids
Portuguese:
impermeável
— not allowing passage of liquids
Russian:
непромока́емый
(nepromokájemyj)
— not allowing passage of liquids
Spanish:
impermeable
— not allowing passage of liquids
Swedish:
ogenomtränglig
— not allowing passage of liquids
Swedish:
tät
— not allowing passage of liquids
Swedish:
vattentät
— not allowing passage of liquids
Tagalog:
dimatulot
— not allowing passage of liquids