Is there a Japanese word or phrase for the chemistry in a relationship? Is there a Japanese word or phrase for the chemistry in a relationship? And by "relationship", I don't mean a strictly romantic one. It could be the chemistry between best friends, or even the lack of chemistry when meeting someone new and feeling like the two of you don't click.

I would say that the most versatile counterpart would be {}. It can be used in any kind of interpersonal relationships including romantic ones.

We say:

> (Person A) + **** \+ (Peson B) + **** \+ or
>
> (Person A) + **** \+ (Peson B) + **** \+ {}

Every once in a while, you will encounter the word , but it is not very common at all.