| fidgety(adjective, nervous, emotional, restless, volatile) |
| flaring(adjective, intense, violent, hot, fierce) |
| flickering(adjective, intense, violent, hot, fierce) |
| flushed(adjective, intense, violent, hot, fierce) |
| foolhardy |
| galvanic(adjective, nervous, emotional, restless, volatile) |
| hard-core |
| harum-scarum |
| headlong |
| high-strung(adjective, nervous, emotional, restless, volatile) |
| hot-blooded(adjective, intense, violent, hot, fierce) |
| hotheaded |
| hurried |
| hysterical(adjective, nervous, emotional, restless, volatile) |
| igneous(adjective, intense, violent, hot, fierce) |
| ignited(adjective, intense, violent, hot, fierce) |
| impassioned(adjective, intense, violent, hot, spirited) |
| impatient(adjective, nervous, emotional, restless, volatile) |
| impulsive(adjective, intense, violent, hot, restless) |
| in flames(expression, adjective, intense, violent, hot) |