THESAURUS
undulant
alternate, beating, bent, billowing, billowy, circling, curvaceous, curvate, curvated, curve, curved, curvesome, curviform, curvilineal, curvilinear, curving, curvy, cyclic, epochal, even, every other, geosynclinal, incurvate, incurvated, incurved, incurving, intermittent, isochronal, labyrinthine, mazy, meandering, measured, metronomic, oscillatory, periodical, pulsing, reciprocal, recurrent, recurring, recurvate, recurvated, recurved, recurving, rhythmic, rolling, rotary, seasonal, serial, serpentine, sinuous, steady, surgy, tortuous, undulate, undulated, undulating, undulative, undulatory, wavelike, waving, wavy, wheeling