undurchlässig
German, adjective/ˈundʊʁçˌlɛsɪç/
undurchlässig is spelled U-N-D-U-R-C-H-L-Ä-S-S-I-G (13 letters) and appears about once in every 9 million words in written German, the 154,802nd most frequent German word form (wordfreq, 2021 data). Undurchlässig is a German adjective meaning “impenetrable” (English Wiktionary, September 2026). The German Wiktionary defines it as “so, dass nichts es durchdringen kann”.
What does undurchlässig mean in English?
adjective
- 1
impenetrable
Source: English Wiktionary, German section, dump of September 2, 2026 (CC BY-SA 4.0).
How German dictionaries define it
adjective: 1. so, dass nichts es durchdringen kann
The definition in the German Wiktionary, in German.
Source: German Wiktionary, dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of undurchlässig
- undurchlässiger masculine nominative singular
- am undurchlässigsten superlative
- undurchlässige feminine nominative singular
- undurchlässiges neuter nominative singular
- undurchlässigen genitive masculine singular
- undurchlässigem dative masculine singular
- der undurchlässige definite includes-article masculine
- die undurchlässige definite feminine includes-article
- das undurchlässige definite includes-article neuter
- die undurchlässigen definite includes-article nominative
- des undurchlässigen definite genitive includes-article
- der undurchlässigen definite feminine genitive
- dem undurchlässigen dative definite includes-article
Source: English Wiktionary and German Wiktionary (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce undurchlässig?
- /ˈundʊʁçˌlɛsɪç/
- /-ˌlɛsɪk/
- [ˈʊndʊʁçˌlɛsɪç]
Sources: English Wiktionary, German Wiktionary (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to undurchlässig
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is undurchlässig in German?
undurchlässig appears about once in every 9 million words in written German.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).