1. Adjective.  Not defensible; not capable of being defended; vulnerable.
  2. Adjective.  Incapable of being justified or excused; inexcusable; unpardonable.
  3. Adjective.  Incapable of being explained; untenable; insupportable; invalid.

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This entry was last updated on RefTopia from its source on 3/20/2012.