volcanic (adj.)
- combustible
- edgy
- emotional
- eruptive
- excitable
- explosive
- fierce
- fiery
- furious
- hasty
- high-spirited
- high-strung
- hot
- hot-tempered
- hotheaded
- impetuous
- inflammable
- irascible
- irritable
- mettlesome
- nervous
- passionate
- peppery
- perturbable
- prickly
- quick
- quick-tempered
- sensitive
- short-tempered
- skittish
- spunky
- stormy
- tempestuous
- touchy
- vehement
- violent
- wild
