Source : Webster's Revised Unabridged Dictionary (1913)

Incumbrance \In*cum"brance\, n. [See {Encumbrance}.] [Written
   also {encumbrance}.]
   1. A burdensome and troublesome load; anything that impedes
      motion or action, or renders it difficult or laborious;
      clog; impediment; hindrance; check. --Cowper.

   2. (Law) A burden or charge upon property; a claim or lien
      upon an estate, which may diminish its value.

Source : WordNet®

incumbrance
     n 1: a charge against property (as a lien or mortgage) [syn: {encumbrance}]
     2: an onerous or difficult concern; "the burden of
        responsibility"; "that's a load off my mind" [syn: {burden},
         {load}, {encumbrance}, {onus}]
     3: any obstruction that impedes or is burdensome [syn: {hindrance},
         {hitch}, {preventive}, {preventative}, {encumbrance}, {interference}]