- 1changing often and suddenly The weather here is notoriously fickle. the fickle world of fashion The latest downturn in sales shows just what a fickle business this is. the fickle finger of fate
- 2(of a person) often changing their mind in an unreasonable way so that you cannot rely on them a fickle friend another example of his fickle behavior
noun [uncountable] the fickleness of the New England climateSee fickle in the Oxford Advanced Learner's Dictionary
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