| flaring(adjective, intense, violent, hot, fierce) |
| flickering(adjective, intense, violent, hot, fierce) |
| frenetic(adjective, intense, excited, nervous, unsettled) |
| frenzied(adjective, intense, excited, nervous, unsettled) |
| furious(adjective, excited, nervous, unsettled, agitated) |
| hearty |
| hot-blooded(intense, violent, hot, fierce, spirited) |
| hot-headed(adjective, intense, violent, hot, fierce) |
| hot-tempered(adjective, intense, violent, hot, fierce) |
| humid(warm, burning, scorching, blistering, roasting) |
| ignited(adjective, intense, violent, hot, fierce) |
| impetuous(intense, violent, hot, fierce, spirited) |
| impulsive(intense, violent, hot, fierce, spirited) |
| in flames(expression, adjective, intense, violent, hot) |
| incandescent(warm, heated, burning, white, scorching) |
| infected(adjective, tender, swollen, reddened) |
| intoxicated |
| irascible(adjective, intense, violent, hot, fierce) |
| irritable(adjective, intense, violent, hot, fierce) |
| irritated(adjective, tender, swollen, reddened) |