inconstantia, ae, f. inconstans, inconstancy, changeableness, fickleness (class.). Of persons: quid est inconstantia, mobilitate, levitate, cum singulis hominibus, tum vero universo senatui turpius? Cic. Phil. 7, 3, 9: levitate implicata, id. Vatin. 1, 3: fama inconstantiae, id. Fam. 1, 9: inconstantiae notam habere, Plin. ap. Trogas, 11, 52, 114, § 276: nemo doctus umquam mutationem consilii inconstantiam dixit esse, Cic. Att. 16, 7, 3; id. N. D. 3, 14.

— Of inanim. and abstr. things: fulgoris, Plin. 37, 13, 76, § 199: artis, id. 7, 49, 50, § 162: mensurae, id. 6, 26, 30, § 124: frontis ac luminum, Quint. 9, 3, 101: mutabilitasque mentis, Cic. Tusc. 4, 35, 76; id. Dom. 2.