| fearful(adjective, upset, excited, anxious, nervous) |
| fearless(adjective, bright, energetic, passionate, determined) |
| fervent(adjective, intense, passionate, violent, fierce) |
| fervid(adjective, intense, passionate, violent, fierce) |
| festive(adjective, bright, energetic, active, vigorous) |
| fickle(adjective, passionate, unstable, unpredictable, unreliable) |
| fiery(adjective, bright, intense, energetic, passionate) |
| fireball(adjective, strong, keen, smart, firm) |
| fluttery(adjective, excited, anxious, nervous, pressure) |
| forceful(adjective, keen, intense, energetic, passionate) |
| forcible(adjective, keen, intense, energetic, passionate) |
| frenzied(agitated, frantic, hysterical, preoccupied, desperate) |
| fretful(adjective, upset, excited, anxious, nervous) |
| frisky(adjective, moving, keen, bright, intense) |
| frolicsome(adjective, bright, energetic, lively, active) |
| froward(adjective, passionate, unstable, unpredictable, unreliable) |
| furious(adjective, intense, passionate, violent, wild) |
| game(adjective, bright, energetic, passionate, determined) |
| gay(adjective, bright, energetic, lively, active) |
| gingery(adjective, bright, energetic, passionate, determined) |