The Collaborative International Dictionary of English v.0.48:

Pedestrian \Pe*des"tri*an\, a.
   1. Going on foot; performed on foot; as, a pedestrian
      journey.
      [1913 Webster]

   2. Lacking in distinction or imaginativeness; ordinary;
      commonplace; dull; insipid; prosaic; as, pedestrian prose.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Pedestrian \Pe*des"tri*an\, n.
   A walker; one who journeys on foot; a foot traveler; specif.,
   a professional walker or runner.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pedestrian
    adj 1: lacking wit or imagination; "a pedestrian movie plot"
           [syn: pedestrian, prosaic, prosy, earthbound]
    n 1: a person who travels by foot [syn: pedestrian, walker,
         footer]

The Devil's Dictionary (1881-1906):

PEDESTRIAN, n.  The variable (an audible) part of the roadway for an
automobile.