The Oxford Thesaurus An A-Z Dictionary of Synonyms - panic n.

1) terror, alarm, fear, fright, dread, horror, dismay, consternation, hysteria; anxiety, apprehension, apprehensiveness, nervousness: As the speeding car veered towards us, a feeling of panic gripped me. --v. 2) be terrified or alarmed or fearful or frightened or terror-stricken or terror-struck, dread, fear, lose one's nerve; frighten, scare; Colloq go to pieces, fall apart, Brit lose one's bottle: I panicked, turned the wheel the wrong way, and crashed the car into a tree. Gregory panics at the slightest sign of danger. 3) frighten, scare, alarm, terrify, unnerve: Something panicked the horses and one kicked out his stall door.