Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | vicennalis |
| Gen. | vicennalis |
| Dat. | vicennali |
| Acc. | vicennalem |
| Abl. | vicennali |
| Voc. | vicennalis |
| PLURIEL |
| Nom. | vicennales |
| Gen. | vicennalĭum |
| Dat. | vicennalĭbus |
| Acc. | vicennales |
| Abl. | vicennalĭbus |
| Voc. | vicennales |
| SINGULIER |
| Nom. | vicennalis |
| Gen. | vicennalis |
| Dat. | vicennali |
| Acc. | vicennalem |
| Abl. | vicennali |
| Voc. | vicennalis |
| PLURIEL |
| Nom. | vicennales |
| Gen. | vicennalĭum |
| Dat. | vicennalĭbus |
| Acc. | vicennales |
| Abl. | vicennalĭbus |
| Voc. | vicennales |
| SINGULIER |
| Nom. | vicennale |
| Gen. | vicennalis |
| Dat. | vicennali |
| Acc. | vicennale |
| Abl. | vicennali |
| Voc. | vicennale |
| PLURIEL |
| Nom. | vicennalĭa |
| Gen. | vicennalĭum |
| Dat. | vicennalĭbus |
| Acc. | vicennalĭa |
| Abl. | vicennalĭbus | |