n. The state or property of being stable or firm; strength to stand and resist overthrow or change; stableness; firmness: as, the stability of a building, of a government, or of a system.n. Steadiness or firmness, as of purpose or resolution; fixity of character; steadfastness: the opposite of fickleness and inconstancy.n. Fixedness, as opposed to fluidity.n. Continuance in the same state; permanence; specifically, an additional or fourth vow of continuance in the same profession, and residence for life in the same monastery, imposed upon monks by the Benedictine rule.n. That character of equilibrium, or of a body in equilibrium, in virtue of which, if the position is disturbed, it tends to be restored.n. Synonyms andn. Immobility, permanence. See stable.n. Molecular stability, permanence of condition as regards the arrangement of the molecules: said of metals which, by repeated annealing, have been brought into a state in which further changes of dimensions or structure do not occur.