noun
Refers to a person's disposition or skill in social situations; often used when describing personality traits or job requirements.
彼は社交性が高く、誰とでもすぐに仲良くなれる。
He is highly sociable and can quickly become friends with anyone.
この仕事には社交性が求められる。
This job requires sociability.
Compound of 社交 (しゃこう, 'social intercourse') and 性 (せい, 'nature, quality'). The exact historical derivation is uncertain, but the word follows a common pattern for abstract nouns in modern Japanese.