without symmetry, regularity, or uniformity
rough
not regular; having sides that are not equal or angles that are not equal
whose faces are not all regular polygons (or are not equally inclined to each other)
nonstandard; not conforming to rules or expectations
not following the regular or expected patterns of inflection in a given language
A soldier who is not a member of an official military force and who may not use regular army tactics.
One who does not regularly attend a venue.
Having the quantum mechanical property of strangeness.
Outside of one's current relationship; unfamiliar.
Not normal; odd, unusual, surprising, out of the ordinary.
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.