Translation guide
The English word "fickle" describes someone or something that changes frequently, especially in affections, loyalties, or interests. In Japanese, there is no single perfect equivalent; instead, different words and phrases capture specific nuances of fickleness, such as emotional volatility, unreliability, or changeability. This guide organizes the most useful Japanese expressions by the intended meaning.
Describing a person whose feelings, romantic interest, or loyalty shifts easily and often.
A common word for a person who is fickle in love or interests, often used in romantic contexts. It implies a tendency to quickly shift affections.
彼は移り気だから、すぐに他の人を好きになる。
He's fickle, so he quickly falls for someone else.
Literally 'many feelings', this phrase describes someone whose interests or affections are easily scattered among many things or people. Often used for romantic fickleness.
気が多い人は、一つのことに集中できない。
A fickle person can't focus on one thing.
Describes someone who gets bored easily and quickly moves on to new things. While not exclusively about affections, it captures the fickle tendency to lose interest fast.
彼女は飽きっぽくて、趣味がすぐ変わる。
She's fickle and her hobbies change quickly.
Describing something that cannot be depended on because it changes unpredictably, like weather, luck, or a person's behavior.
Refers to whimsical, unpredictable changes in mood or behavior. Can describe a person, weather, or fortune. Often used in the phrase 気まぐれな (kimagure na) meaning 'fickle' or 'whimsical'.
春の天気は気まぐれだ。
Spring weather is fickle.
彼は気まぐれな性格で、約束を守らないことがある。
He has a fickle personality and sometimes doesn't keep promises.
Literally 'easy to change', this adjective describes things that are prone to change, such as weather, moods, or trends. It is a straightforward and common way to express fickleness.
Specifically refers to a tendency to be unfaithful in romantic relationships. It is a noun describing a person's character as prone to cheating or being fickle in love.
Describing a person who frequently changes their mind or cannot stick to a decision.
Literally 'heart wavers', this phrase captures the internal indecision and susceptibility to change. It is often used when someone is torn between options.
彼はいつも心が揺れていて、決断できない。
He's always fickle and can't make a decision.
Means indecisive or wishy-washy. It emphasizes the inability to make a firm decision, which can be perceived as fickleness.
優柔不断な態度は、周りを困らせる。
A fickle attitude troubles those around you.
移り気 (utsurigi) is primarily about a person's fickle affections or interests, often in love. 気まぐれ (kimagure) is broader, describing whimsical or unpredictable behavior in people, weather, or situations. Use 移り気 for romantic fickleness and 気まぐれ for general unpredictability.
彼は移り気で、すぐに彼女が変わる。
He's fickle and changes girlfriends quickly.
気まぐれな雨が降ったりやんだりしている。
Fickle rain keeps starting and stopping.
There is no single Japanese word that covers all uses of 'fickle'. Translating directly as フィクル (fikuru) is not understood. Choose the expression that matches the specific nuance: changeable affections (移り気), whimsical unpredictability (気まぐれ), or indecisiveness (優柔不断).
彼の気分は変わりやすい。
His mood is fickle.
浮気性の人は信頼できない。
A fickle person can't be trusted.