| febrile(adjective, unrestrained, inflamed, combustible) |
| fevered(adjective, unrestrained, inflamed, combustible) |
| feverish(adjective, unrestrained, inflamed, combustible) |
| fickle(adjective, sensitive, touching, exciting) |
| fired-up(overwrought, worked-up, keyed-up) |
| fired up(expression, adjective, passionate, powerful, affected) |
| flaring(adjective, unrestrained, inflamed, combustible) |
| flasher(highpowered, chop-chop, PDQ) |
| fleet of foot(expression, idiom, highpowered, chop-chop, PDQ) |
| flickering(adjective, unrestrained, inflamed, combustible) |
| flushed(adjective, passionate, unrestrained, inflamed, nonresistant) |
| flying high(expression, passionate, excited, delighted, glowing) |
| fond of(expression, passionate, inflamed, rutilous) |
| freaked-out(overwrought, worked-up, keyed-up) |
| frisky(adjective, lively, courageous, gritty) |
| full of pep(expression, adjective, idiom, lively, courageous) |
| furious(adjective, powerful, rousing) |
| game(adjective, lively, courageous, gritty) |
| geared up(expression, passionate, inflamed, overwrought, worked-up) |
| gleeful(delighted, glowing, beaming) |