Third Declension Adjectives

Third Declension adjectives have third declension endings. They follow three different patterns.

1. All three nominative singular endings. (M, F, N)Ex) acer, acris, acre- keen, fierce

2. Only two nominative singular ending (1 for masculine and feminine and neuter)

Ex) fortis, forte- brave, strong3. Only one nominative singular ending for all masculine, feminine, and

neuter.Ex) felix, felicis- fortunate, happy

*Genitive singular endings of all third declension adjectives are the same.

3rd Declension-- 1 Nominative EndingSINGULAR

M. F. N.N. felix felix felixG. felicis felicis felicisD. felici felici feliciACC. Felicem felicem felixABL. Felici felici felici

PLURALM. F. N.

N. felices felices feliciaG. felicium felicium feliciumD. felicibus felicibus felicibusACC. Felices felices feliciaABL. Felicibus felicibus felicibus