Steadiness; stableness; firmness; strength to stand without being moved or overthrown; as the stability of a throne; the stability of a constitution of government.

Steadiness or firmness of character; firmness of resolution or purpose; the qualities opposite to fickleness, irresolution or inconstancy. We say, a man of little stability, or of unusual stability.

Fixedness; as opposed to fluidity. Since fluidness and stability are contrary qualities-- .