| fierce(adjective, keen, intense, passionate, enthusiastic) |
| fiery(adjective, keen, intense, passionate, enthusiastic) |
| gung-ho |
| heartfelt(adjective, strong, passionate, ardent, sincere) |
| hot(adjective, keen, intense, passionate, enthusiastic) |
| hungry(adjective, keen, intense, passionate, enthusiastic) |
| impassioned(adjective, strong, keen, intense, passionate) |
| industrious(adjective, strong, passionate, ardent, sincere) |
| intense(adjective, keen, passionate, enthusiastic, fierce) |
| keen(adjective, strong, intense, passionate, enthusiastic) |
| lovey-dovey(adjective, keen, intense, passionate, enthusiastic) |
| loyal(adjective, keen, passionate, enthusiastic, fervent) |
| lusty(adjective, keen, intense, passionate, enthusiastic) |
| passionate(adjective, strong, keen, intense, enthusiastic) |
| perseverant(adjective, strong, passionate, ardent, sincere) |
| purposeful(adjective, strong, passionate, ardent, sincere) |
| resolute(adjective, keen, passionate, enthusiastic, fervent) |
| sedulous(adjective, strong, passionate, ardent, sincere) |
| spirited(adjective, keen, intense, passionate, enthusiastic) |
| steadfast(adjective, keen, passionate, enthusiastic, fervent) |