unplumbed

(un plumd)

adjective

  1. not sounded, measured, or explored with or as with a plumb
  2. not fully plumbed, or understood

See unplumbed in American Heritage Dictionary 4

adjective
  1. Not measured or sounded with a plumb: unplumbed ocean depths.
  2. Not fully examined or explored: unplumbed ideas.

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