| Nominativ | obstinata, obstinatum, obstinatus | obstinati, obstinata, obstinatae |
| Genitiv | obstinati, obstinati, obstinatae | obstinatorum, obstinatorum, obstinatarum |
| Dativ | obstinatae, obstinato, obstinato | obstinatis, obstinatissima, obstinatissime, obstinatissimum |
| Akkusativ | obstinatum, obstinatum, obstinatam | obstinatos, obstinatosque, obstinata, obstinatas |
| Ablativ | obstinato, obstinata, obstinato | obstinatis, obstinatissima, obstinatissime, obstinatissimum |
| Vokativ | obstinate, obstinata, obstinatum | obstinati, obstinata, obstinatae |
