fickle
adjective /ˈfɪkl/
  /ˈfɪkl/
(disapproving)- changing often and suddenly
- The weather here is notoriously fickle.
 - Such is life in the fickle world of fashion.
 - The latest downturn in sales shows just what a fickle business this is.
 - the fickle finger of fate
 - Always be properly dressed and prepared to cope with our fickle weather.
 
Oxford Collocations Dictionaryverbs- be
 
- extremely
 - fairly
 - very
 - …
 
 - (of a person) often changing their mind in an unreasonable way so that you cannot rely on them
- She had been a fickle friend, even at the best of times.
 - another example of his fickle behaviour
 
Oxford Collocations Dictionaryverbs- be
 
- extremely
 - fairly
 - very
 - …
 
 
Word OriginOld English ficol ‘deceitful’, of Germanic origin.