up-and-down

from Moby Thesaurus II by Grady Ward, 1.0
20 Moby Thesaurus words for "up-and-down":
      alternate, back-and-forth, orthodiagonal, orthogonal,
      perpendicular, plumb, plunging, precipitous, reciprocal,
      reciprocative, right-angle, right-angled, right-angular, seesaw,
      sheer, sine wave, steep, straight-up, straight-up-and-down,
      to-and-fro

    

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