See also: onedimensional




  1. Having length, but no width, height or depth.
    A straight line is one-dimensional.
  2. (figuratively) Lacking depth or believability; flat.
    • 1972, Hardie Albright, Stage direction in transition
      Such one-dimensional characters have always existed in the theatre along with more recognizably human characters.
    • 1999, Kimberly Kimbell-Lopez, Connecting with traditional literature
      In contrast to this are the flat, one-dimensional characters found in fables.
  3. (figuratively) Lacking personal depth and substance; conceited, vain, shallow, superficial (see also; two-dimensional).