| Singular | Plural | |
|---|---|---|
| Nominativ | sumptuosum, sumptuosus, sumptuosa | sumptuosi, sumptuosa, sumptuosae |
| Genitiv | sumptuosae, sumptuosi, sumptuosi | sumptuosarum, sumptuosorum, sumptuosorum |
| Dativ | sumptuosae, sumptuoso, sumptuoso | sumptuosis, sumptuosissimae, sumptuosissimi, sumptuosissimus |
| Akkusativ | sumptuosum, sumptuosum, sumptuosam | sumptuosos, sumptuosa, sumptuosas |
| Ablativ | sumptuosa, sumptuoso, sumptuoso | sumptuosis, sumptuosissimae, sumptuosissimi, sumptuosissimus |
| Vokativ | sumptuosa, sumptuosum, sumptuose | sumptuosi, sumptuosa, sumptuosae |
| Singular | Plural | |
|---|---|---|
| Nominativ | sumptuosius, sumptuosior | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | sumptuosius | — |
| Ablativ | — | — |
| Vokativ | sumptuosius, sumptuosior | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | sumptuosissimus | sumptuosissimae, sumptuosissimi |
| Genitiv | sumptuosissimi, sumptuosissimi, sumptuosissimae | — |
| Dativ | sumptuosissimae | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | sumptuosissimae, sumptuosissimi |
| Grundform | |
|---|---|
| Positiv | sumptuose |
| Komparativ | — |
| Superlativ | — |