edgy (adj.)
- antsy
- anxious
- apprehensive
- breathless
- combustible
- eager
- emotional
- eruptive
- excitable
- excited
- explosive
- fearful
- fretful
- frightened
- hasty
- high-spirited
- high-strung
- hopped-up
- impatient
- impetuous
- inflammable
- irascible
- irritable
- mettlesome
- nervous
- nervy
- overstrung
- panicky
- perturbable
- prickly
- restive
- restless
- sensitive
- skittish
- touchy
- uneasy
- unquiet
- uptight
- volatile
- volcanic