"Unconstancy" is a word in ENGLISH

Capable of change; subject to alteration; mutable; variable; fickle; inconstant; as, a changeable humor.

The quality of being changeable; fickleness; inconstancy; mutability.

Full of change; mutable; inconstant; fickle; uncertain.

Given to change; inconstant.

One apt to change; an inconstant person.

Not true to allegiance, duty, or vows; perfidious; trecherous; disloyal; not of true fidelity; inconstant, as a husband or a …

Not fixed or firm; liable to change; unstable; of a changeable mind; not firm in opinion or purpose; inconstant; capricious; …

Flowing; unstable; inconstant; variable.

Pertaining to, or having the nature of, fluxion or fluxions; variable; inconstant.

One who frisks; one who leaps of dances in gayety; a wanton; an inconstant or unsettled person.

Characterized by inconstancy; unstable; changeable; fickle; wild; thoughtless; heedless.

Giddi; light; inconstant; wanton.

Inconstancy.

The quality or state of being inconstant; want of constancy; mutability; fickleness; variableness.

Not constant; not stable or uniform; subject to change of character, appearance, opinion, inclination, or purpose, etc.; not firm; unsteady; …

In an inconstant manner.

Variableness; changeableness; inconstancy; lack of smoothness or equability; deviation; unsteadiness, as of the weather, feelings, etc.

Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc.

Not stable; not standing fast or firm; unstable; prone to change or recede from a purpose; mutable; inconstant.

mabinaylóhon - Changing, changeable, shifting, fickle, variable, inconstant; a changeling. (cf. báylo).