Translation guide
A man who has casual sexual relationships with many women, often without commitment. In Japanese, this concept is expressed through various terms ranging from neutral to strongly negative, with nuances of playboy, womanizer, or cheat.
To describe a man who enjoys pursuing multiple women for romantic or sexual relationships, often charming but not necessarily married.
A common, somewhat colloquial term for a man who seduces many women. It implies skill in attracting women, often with a negative connotation.
He's a well-known womanizer.
Loanword from English 'playboy'. Often used in media or to describe a wealthy, charming man who dates many women. Can be less negative than 女たらし.
He's known as a playboy.
Literally 'color man', meaning a handsome man who is popular with women, often a seducer. Can be used admiringly or critically.
Be careful of that ladies' man.
To describe a man who is unfaithful to a partner or spouse, engaging in extramarital affairs.
A person who cheats on their partner. While not gender-specific, it is commonly used for men. Implies infidelity in a committed relationship.
He's a cheater, so I can't trust him.
Specifically a man engaged in an extramarital affair (不倫). Strongly negative and formal.
He appeared in a weekly magazine as an adulterer.
Literally 'woman-liker', a man who is fond of women, often implying a tendency to chase after them. Can range from harmless to philandering depending on context.
To describe a man who aggressively pursues women for sexual purposes, often with a negative, sleazy connotation.
A lecher, a man who is always thinking about sex and chasing women. Very casual and derogatory.
That dirty old man!
Slang for a lecherous middle-aged man. Combines 'ero' (erotic) and 'oyaji' (old man).
Literally 'woman-hunting', a man who actively seeks out women for sex. Strongly negative.
He goes out woman-hunting every night.
女たらし is more negative and implies deception or manipulation, while プレイボーイ can be used more neutrally or even admiringly for a charming, wealthy man. 女たらし is also more colloquial.
He's a womanizer who has made many women cry.
He's a playboy, but he's kind at heart.
There is no direct Japanese equivalent for 'philanderer' that covers all nuances. Choose a term based on the specific behavior: seduction (女たらし), infidelity (浮気者), or lechery (助平). Using the wrong term can change the meaning significantly.
He's always been known as a woman-chaser.
電車でエロオヤジにあった。
I encountered a pervert on the train.