Is Sidedness a Word?

The condition of having a specific number or form of sides.

Is two sidedness a word?

Thus, two-sidedness is the quality of having two sides. Although this is not a common word, it is a reasonable one. One could say, for instance, that a sheet of paper shows two-sidedness.

What is Oneside?

considering but one side of a matter or question; partial or unfair: a one-sided judgment. with one party, contestant, side, etc., vastly superior; unbalanced; unequal: a one-sided fight.