Outside of one's current relationship; unfamiliar.
Not normal; odd, unusual, surprising, out of the ordinary.
Having the quantum mechanical property of strangeness.
Not belonging to one.
Unfamiliar, not yet part of one's experience.
Of an attractor: having a fractal structure.
Sex outside of one's current relationship.
That is or has or have been used.
Familiar through use; usual; accustomed.
That has or have previously been owned by someone else.
To perform habitually; to be accustomed [to doing something].