移り気・気まぐれ

fickle/capricious nature

fickle   /'fɪkl/　adjective

★ 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.

★ (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

capricious　/kə'prɪʃəs/　adjective  気まぐれの･予知できない 

His capricious behavior often leaves his friends feeling confused.

単語の使い分け

fickle ⇒ 人の性格･天気･物事の説明など（一貫性が無い）

capricious ⇒ 物事の説明など（衝動的･突然の変化）

She’s so fickle, she can't make up her mind about anything.

The stock market can be fickle, with sudden ups and downs.

Her capricious nature often leads her to make rash decisions.

The weather in this region is notoriously capricious, changing from sunny to stomy in a matte of minutes.

New words

the physical world   自然界･物質界 自然科学対象の物質範囲 精神に対して物質