- Equilibrium - The state or quality of being stable, or firm;
steadiness; firmness; strength to stand without being moved or
overthrown; as, the stability of a structure; the stability of a throne
or a constitution. - Steadiness or firmness of character, firmness of
resolution or purpose; the quality opposite to fickleness,
irresolution, or inconstancy; constancy; steadfastness; as, a man of
little stability, or of unusual stability. - Fixedness; -- as opposed to fluidity.