| Singular | Plural | |
|---|---|---|
| Nominativ | fugax, fugax | fugacia, fugaces, fugacia, fugaces |
| Genitiv | fugacis, fugacissimam, fugacissimi, fugacissimis, fugacis, fugacissimo, fugacissimos | fugacum, fugacum, fugacium, fugacium |
| Dativ | fugaci, fugaci | fugacibus, fugacibus |
| Akkusativ | fugax, fugacem, fugacem, fugax | fugacia, fugaces, fugacis, fugacissimam, fugacissimi, fugacissimis, fugacis, fugacia, fugaces, fugacissimo, fugacissimos |
| Ablativ | fugaci, fugace, fugace, fugaci | fugacibus, fugacibus |
| Vokativ | fugax, fugax | fugacia, fugaces, fugacia, fugaces |
| Singular | Plural | |
|---|---|---|
| Nominativ | fugacior, fugacior, fugacius, fugacius | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | fugacius, fugacius | — |
| Ablativ | — | — |
| Vokativ | fugacior, fugacior, fugacius, fugacius | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | fugacissimi, fugacissimi |
| Genitiv | fugacissimi, fugacissimi, fugacissimi, fugacissimi | — |
| Dativ | fugacissimo, fugacissimo, fugacissimo, fugacissimo | fugacissimis, fugacissimis |
| Akkusativ | fugacissimam, fugacissimam | fugacissimos, fugacissimos |
| Ablativ | fugacissimo, fugacissimo, fugacissimo, fugacissimo | fugacissimis, fugacissimis |
| Vokativ | — | fugacissimi, fugacissimi |