FICKLE

[fick.le] adj [ME fikel deceitful, inconstant, fr. OE ficol deceitful; akin to OE befician to deceive, and prob. to OE fah hostile--more at foe] (13c): marked by lack of steadfastness, constancy, or stability: given to erratic changeableness syn see inconstant -- fick.le.ness n -- fick.ly adv