noun, noun which may take the genitive case particle 'no'
extroversion
Psychological term for an outgoing personality orientation; often contrasted with 内向性 (introversion).
外向性が高い人は社交的だと言われる。
People with high extroversion are said to be sociable.
外向性と内向性は性格
Extroversion and introversion are one of the basic dimensions of personality.
外向的 is the common adjective meaning 'extroverted', while 外向性 is the noun for the trait itself.
Compound of 外向 (extroversion) + 性 (nature, -ity). 外向 is composed of 外 (outside) and 向 (to face).