pedestrian
ordinary, dull, or literally traveling on foot
Root
- ped: foot
Other words with the ped root
- expedient: practical or convenient, sometimes at moral cost
- expedite: to speed up or make easier
- expedition: journey or organized undertaking
- impede: to hinder or block progress
- impediment: obstacle or hindrance
- pedal: foot-operated lever or control
Pedestrian starts as foot-traveler; the exam sense is plain or ordinary.
The proposal was practical but pedestrian, with no new idea.
Pedestrian can still mean a person walking. The harder use moves from foot-travel to plainness: ordinary, everyday, not especially imaginative.