The Collaborative International Dictionary of English v.0.48:

Hindrance \Hin"drance\, n. [See Hinder, v. t.]
   1. The act of hindering, or the state of being hindered.
      [1913 Webster]

   2. That which hinders; an impediment.
      [1913 Webster]

            What various hindrances we meet.      --Cowper.
      [1913 Webster]

            Something between a hindrance and a help.
                                                  --Wordsworth.

   Syn: Impediment; obstruction; obstacle; difficulty;
        interruption; check; delay; restraint.
        [1913 Webster]

WordNet (r) 3.0 (2006):

hindrance
    n 1: something immaterial that interferes with or delays action
         or progress [syn: hindrance, hinderance, deterrent,
         impediment, balk, baulk, check, handicap]
    2: any obstruction that impedes or is burdensome [syn:
       hindrance, hinderance, hitch, preventive,
       preventative, encumbrance, incumbrance, interference]
    3: the act of hindering or obstructing or impeding [syn:
       hindrance, hinderance, interference]