Synonyms for Petrified (same or very similar meaning)
WordNet sense 1 (resisting weight or pressure):
hardWordNet sense 2 (converted into a mineral):
mineralizedWordNet sense 3 (of or containing or derived from minerals):
mineralWordNet sense 4 (so frightened as to be unable to move; stunned or paralyzed with terror):
numbWordNet sense 5 (filled with fear or apprehension):
afraidFrom the ODE community, based on WordNetadd/edit