A challenge between two opposing players, where both have an equal chance of taking possession.
Half and half.
Used to describe 2 possible outcomes as being equally likely
In half: in two equal parts, shares, etc.
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.
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