陰いんキャいんキャMeanings1noungloomy person; introvert; dark personalityslang›abbreviationSlang abbreviation of 陰キャラ. Used in youth culture to describe someone with a gloomy, introverted, or socially withdrawn character. Often contrasted with 陽キャ (outgoing person).See also: 陰キャラあの子こは陰いんキャだから、パーティーには来こないと思おもう。