trespasser
- n someone who intrudes on the privacy or property of another without permission
- She tried to stop the petty thefts of cattle, maize, poultry and automobile tires by fining her own native Kitosh servants two shillings pay for every unauthorized trespasser .
- The police break in and carry him off to jail as a trespasser.
- Running against Wallace as Lyndon Johnson's proxy in this week's Maryland presidential primary, Brewster called Wallace a "trespasser," a "stumble-bum," and "a dangerous joke.