Her unwashed hair is pulled severely back and there's a halo of frizz around the crown of her head.
also friz, 1610s (implied in frizzed), probably from French friser "to curl, dress the hair" (16c.), perhaps from stem of frire "to fry, cook." Assimilated to native frizzle. Related: Frizzed; frizzing. As a noun from 1660s, "frizzed hair."