Synonyms for Frightened (same or very similar meaning)
WordNet sense 1 (thrown into a state of intense fear or desperation):
panic-stricken, panicky, terrified, panicked, panic-struckWordNet sense 2 (made afraid):
scaredWordNet sense 3 (filled with fear or apprehension):
afraidFrom the ODE community, based on WordNetadd/edit