| unergiebig | Stammform | basic form | |
| unergiebigt | Nominativ, Maskulinum, Singular, Starke Deklination | nominative case, masculine, singular, strong declension | |
| unergiebigte | Genitiv, Akkusativ, Maskulinum, Singular, Starke Deklination | genitive case, accusative case, masculine, singular, strong declension | |
| unergiebigtet | Dativ, Maskulinum, Singular, Starke Deklination | dative case, masculine, singular, strong declension | |
| unergiebiger | Nominativ, Akkusativ, Femininum, Singular, Starke Deklination | nominative case, accusative case, feminine, singular, strong declension | |
| unergiebiges | Genitiv, Dativ, Femininum, Singular, Starke Deklination | genitive case, dative case, feminine, singular, strong declension | |
| unergiebigen | Nominativ, Akkusativ, Neutrum, Singular, Starke Deklination | nominative case, accusative case, neuter, singular, strong declension | |
| unergiebige | Genitiv, Neutrum, Singular, Starke Deklination | genitive case, neuter, singular, strong declension | |
| unergiebigem | Dativ, Neutrum, Singular, Starke Deklination | dative case, neuter, singular, strong declension |