PEDESTRIAN

n. someone who travels on foot

adj. of a person who travels on foot; unimaginative; boring

A pedestrian is a person travelling on foot, whether walking or running. In modern times, the term mostly refers to someone walking on a road or footpath, but this was not the case historically.
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Noun
1. a person who travels by foot
(synonym) walker, footer
(hypernym) traveler, traveller
(hyponym) hiker, tramp, tramper
Adjective
1. lacking wit or imagination; "a pedestrian movie plot"
(synonym) prosaic, prosy, earthbound
(similar) uninteresting

(n.)
A walker; one who journeys on foot; a foot traveler; specif., a professional walker or runner.
  

(a.)
Going on foot; performed on foot; as, a pedestrian journey.
  

Any person not in or upon a motor vehicle or other vehicle. (NHTSA3) (NSC1)