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n.
a person motivated by irrational enthusiasm (as for a cause); "A fanatic is one who can't change his mind and won't change the subject"--Winston Churchill
adj.
excessively agitated; transported with rage or other violent emotion; "frantic with anger and frustration"; "frenetic screams followed the accident"; "a frenzied look in his eye"
adj.
characterized by or arising from psychoneurotic hysteria; "during hysterical conditions various functions of the human body are disordered"- Morris Fishbein; "hysterical amnesia"
adj.
affected with or marked by frenzy or mania uncontrolled by reason; "a frenzied attack"; "a frenzied mob"; "the prosecutor's frenzied denunciation of the accused"- H.W.Carter; "outbursts of drunken violence and manic activity and creativity"