† inˈconstantnessObs. [f. as prec. + -ness.] Inconstancy. a1562Cavendish Wolsey (1893) 286 The inconstantnes of prynces favour.1575Churchyard Chippes (1817) 132 To terrifie the stubborn stomacks and inconstantnesse of proud people.1727in Bailey (vol. II).