| facile(adjective, ability) |
| fair(adjective, good, clear, pleasant, keen) |
| festive(adjective, bright, energetic, active, vigorous) |
| florid(adjective, good, clear, pleasant, keen) |
| forcible(adjective, strong, keen, intense, energetic) |
| frolicsome(adjective, bright, energetic, lively, active) |
| full-bodied(adjective, healthy) |
| full of energy(expression, idiom) |
| full of get-up-and-go |
| full of go(expression, idiom) |
| glowing(adjective, good, clear, pleasant, keen) |
| go-go(adjective, bright, energetic, active, vigorous) |
| going(fast, rapid, swift) |
| good(adjective, clear, pleasant, keen, bright) |
| harefooted(fast, rapid, swift) |
| hasty(fast, quick, rapid, brisk, swift) |
| headlong(fast, rapid, swift) |
| hedonic |
| hot |
| hurried(energetic, fast, quick, rapid, brisk) |