Synonyms: Standhaftigkeit, Rückgrat, Entschlossenheit
| Part of speech | common noun |
|---|---|
| Gender | feminine |
| Singular | Plural | |
|---|---|---|
| Nominative | Festigkeit | |
| Genitive | Festigkeit | |
| Dative | Festigkeit | |
| Accusative | Festigkeit |
| Dutch | vastheid |
|---|---|
| English | firmness; resolution; solidity |
| Esperanto | firmeco |