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Adjective: one-dimensional  ,wún-dI'men-shu-n(u)l
  1. Relating to a single dimension or aspect; having no depth or scope
    "a novel with one-dimensional characters";
    - unidimensional
  2. Of or in or along or relating to a line; involving or having a single dimension
    - linear

See also: collinear, lineal, linelike, rectilineal, rectilinear

Encyclopedia: One-dimensional