fickle

adj. （爱情或友谊上）易变的，不坚定的

few, fewer, fey, feyness, fez, ff, fianc, fiance, fiance (fem 阴性作 fiancee), fiasco, fiat, fib, fiber, fibre, fibre (US fiber), fibre optics (US fiber), fibrosis, fibrositis, fibrous, fibula, fickleness, fiction, fictional, fictionalize, fictionalise, fictitious, Fid Def, fiddle, fiddle with, fiddler, fiddlesticks, fiddling, fiddly, fidelity, fidget, fidgety, field, field hockey, Field Marshal, field officer, field sports,