noun
popular appeal; mass appeal; popularity
Refers to the quality of being liked or accepted by the general public; often used in discussions of art, entertainment, or products.
この映画は大衆性が高く、幅広い世代に支持されている。
This movie has strong popular appeal and is supported by a wide range of generations.
彼の作品は芸術性と大衆性を両立させている。
His works balance artistic quality with mass appeal.
大衆的 is a na-adjective meaning 'popular' or 'for the masses', describing something as having mass appeal. 大衆性 is the noun form referring to the quality or property of being popular.
Compound of 大衆 (taishū, 'the masses, general public') and 性 (sei, '-ness, quality'). The reading is on'yomi throughout.