異性 (Isei) is a Japanese noun meaning “the opposite sex, isomerism”.
Meanings
- noun, adjectival nounthe opposite sex
- noun, adjectival nounisomerism
Examples
彼女は異性の前では非常に恥ずかしがる。
She feels very shy in the presence of the opposite sex.
Sentences from Tatoeba (CC BY 2.0 FR).