Exotic, not mainstream.
An eccentric or unusual person.
A deviant stimulus that appears among repetitive stimuli during an experiment, to trigger an event-related potential in the participant.
Not normal; odd, unusual, surprising, out of the ordinary.
Outside of one's current relationship; unfamiliar.
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.