| Undichtheit | Nominativ, Singular | nominative case, singular | |
| Undichtheite | Genitiv, Singular | genitive case, singular | |
| Undichtheiten | Dativ, Singular | dative case, singular | |
| Undichtheit(e)s | Akkusativ, Singular | accusative case, singular | |
| Undichtheiter | Nominativ, Plural | nominative case, plural | |
| Undichtheitern | Genitiv, Plural | genitive case, plural | |
| Undichtheitn | Dativ, Plural | dative case, plural |