cascading, dangling, dependent, depending, drooping, falling, falling loosely, faltering, flowing, fluctuant, fluctuating, fluctuational, hanging, harmonic, hesitating, hung, libratory, nutational, oscillating, oscillatory, pendent, pending, pendulant, pendular, penduline, pensile, periodic, resonant, sagging, shilly-shally, shilly-shallying, suspended, swaying, swinging, tentative, undulating, undulatory, vacillating, vacillatory, vibratile, vibrating, vibratory, wavering, waving, weeping, wobbly
pendency, dependency, suspension, hanging, pedicel, pedicle, peduncle, tail, train, flap, skirt, pigtail, pony tail, pendulum, hangnail peg, knob, button, hook, nail, stud, ring, staple, tenterhook, fastening, spar, horse, pendent, pendulous
, pensile, hanging, beetling, jutting over, overhanging, projecting, dependent, suspended, loose, flowing, having a peduncle, pedunculate, tailed, caudate.
oscillation, vibration, libration, motion of a pendulum, nutation, undulation, pulsation, pulse, alternation, coming and going, ebb and flow, flux and reflux, ups and down, fluctuation, vacillation, wave, vibratiuncle, swing, beat, shake, wag, seesaw, dance, lurch, dodge, logan, loggan, rocking-stone, vibroscope, oscillating, oscillatory, undulatory, pulsatory, libratory, rectilinear, vibratory, vibratile, pendulous
, to and fro, up and down, backwards and forwards, hither and yon, seesaw, zigzag, wibble-wabble, in and out, from side to side, like buckets in a well.