stranger
/ˈstɹeɪndʒə/
Not normal; odd, unusual, surprising, out of the ordinary.
He thought it strange that his girlfriend wore shorts in the winter.
Unfamiliar, not yet part of one's experience.
I moved to a strange town when I was ten.
Having the quantum mechanical property of strangeness.
Of an attractor: having a fractal structure.
Belonging to another country; foreign.
Reserved; distant in deportment.
Backward; slow.
Not familiar; unaccustomed; inexperienced.
Not belonging to one.