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