fickle

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++fick·le /ˈfɪkəl/ adjective  1  CHANGE YOUR MINDsomeone who is fickle is always changing their mind about people or things that they like, so that you cannot depend on them – used to show disapproval 三心二意的，靠不住的，变化无常的〔含贬义〕 OPP faithful an unpredictable and fickle lover 一个捉摸不透、三心二意的情人2. CHANGE/BECOME DIFFERENTsomething such as weather that is fickle often changes suddenly 〔天气等〕变幻莫测的 OPP reliable —fickleness noun [uncountable] the fickleness of fame 名望的起落无常

Examples from the Corpus

fickle• Trouble is, people are fickle.• But memory is fickle and its criteria are constantly shifting.• Teenagers are fickle and switch brands frequently.• She had been a great star once, but the fickle public now ignored her movies.• Of course, I can be fickle, too.• fickle windsOrigin fickle Old English ficol “deceiving”

fick·le adjectiveChineseSyllable  

Corpus about who their changing mind is fickle is someone always

fickle
fick‧le /ˈfɪkəl/ adjective1. someone who is fickle is always changing their mind about people or things that they like, so that you cannot depend on them – used to show disapproval
   OPP  faithful:
    an unpredictable and fickle lover
2. something such as weather that is fickle often changes suddenly
   OPP  reliable
—fickleness noun [uncountable]:
    the fickleness of fame

fickleBrE /ˈfɪkl/ 🔊NAmE /ˈfɪkl/ 🔊 adjective (disapproving) changing often and suddenly 易变的；无常的◆The weather here is notoriously fickle. 这里的天气出了名的变化无常。🔊🔊◆the fickle world of fashion千变万化的时装界(of a person 人) often changing their mind in an unreasonable way so that you cannot rely on them 反复无常的◆a fickle friend靠不住的朋友▸ fickle·ness BrE /ˈfɪklnəs/ 🔊NAmE /ˈfɪklnəs/ 🔊 noun [uncountable] ◆the fickleness of the English climate英国气候的变幻不定