| fierce(adjective, strong, powerful, heated, penetrating) |
| ardent(adjective, strong, passionate, powerful, excited) |
| burning(adjective, strong, great, sharp, harsh) |
| engrossing(adjective, interesting, absorbing) |
| fervent(adjective, strong, passionate, powerful, excited) |
| fervid(adjective, strong, passionate, powerful, excited) |
| feverish(adjective, strong, passionate, excited, fervent) |
| frantic(adjective, strong, passionate, excited, fervent) |
| frenzied(adjective, strong, passionate, excited, fervent) |
| fundamental(adjective, important) |
| impassioned(adjective, strong, passionate, powerful, excited) |
| incensed(adjective, heated) |
| intense(adjective, strong, severe, passionate, powerful) |
| passionate(adjective, strong, powerful, excited, deep) |
| vehement(adjective, strong, passionate, powerful, excited) |
| violent(adjective, strong, powerful, heated, penetrating) |
| zealous(adjective, strong, passionate, powerful, excited) |
| ablaze(adjective, heated) |
| aflame(adjective, heated) |
| all-devouring |