Synonyms: Trägheit, Inertie, Reaktionsträgheit, Langsamkeit, Untätigkeit, Energielosigkeit
| Part of speech | common noun |
|---|---|
| Gender | feminine |
| Singular | Plural | |
|---|---|---|
| Nominative | Schlaffheit | |
| Genitive | Schlaffheit | |
| Dative | Schlaffheit | |
| Accusative | Schlaffheit |
| Czech | netečnost; setrvačnost |
|---|---|
| Dutch | traagheid; inertie |
| English | indolence; inertia; inertness |
| Esperanto | inerteco |
| French | inertie |
| Greek | αδράνεια |
| Spanish | inercia |