If you describe an activity as frenetic, you mean that it is fast and energetic, but rather uncontrolled. the frenetic pace of life in New York = frantic. frenetic activity is fast and not very organized = frantic (frénétique, from phreneticus, from phren )
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"