Adjektive
itinerant [ more itinerant ; most itinerant ]
ambulatory [ more ambulatory ; most ambulatory ]
peripatetic [ more peripatetic ; most peripatetic ]
discursive [ more discursive ; most discursive]
...
Noun
rover [pl. rovers]
hiker [pl. hikers]
walker [pl. walkers]
wanderer [pl. wanderers]
runabout [pl. runabouts]
tramper [pl. trampers]
tramp [pl. tramps]