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undurchdringlich adj.
gen.	...proof; impenetrable; impermeable; impermeably; impervious; impenetrably; imperviously; adamant; impregnable
construct.	proof
industr., construct.	tight
tech.	inscrutable
undurchdringliche adj.
gen.	impenetrably; impermeably; imperviously
undurchdringlichste adj.
gen.	most impenetrable

undurchdringlich: 1 phrase in 1 subject

General

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