stray

Adjective

• (of an animal) having no home or having wandered away from home
  • a stray calf
    
  • a stray dog
    

• not close together in time
  • isolated instances of rebellion
    
  • a few stray crumbs
    

Noun

• an animal that has strayed (especially a domestic animal)

Verb

• lose clarity or turn aside especially from the main subject of attention or course of argument in writing, thinking, or speaking
  • She always digresses when telling a story
    
  • her mind wanders
    
  • Don't digress when you give a lecture
    

• wander from a direct course or at random
  • The child strayed from the path and her parents lost sight of her
    
  • don't drift from the set course
    

• move about aimlessly or without any destination, often in search of food or employment
  • The gypsies roamed the woods
    
  • roving vagabonds
    
  • the wandering Jew
    
  • The cattle roam across the prairie
    
  • the laborers drift from one town to the next
    
  • They rolled from town to town
    

Related words

• Synonyms: 
  isolated , digress , divagate , wander , err , drift