noun
gloomy person; introvert with a dark vibe
Slang term for someone with a gloomy, introverted, or socially awkward personality, often contrasted with 陽キャラ (outgoing person). Derived from 陰気なキャラ.
See also: キャラ
彼は自分を陰キャラだと言っている。
He says he's a gloomy introvert.
陰キャラでも楽しめるイベントを企画しよう。
Let's plan an event that even gloomy types can enjoy.
陰気 is the adjective meaning 'gloomy' or 'melancholy', from which 陰キャラ is derived. 陰キャラ is a noun for a person with that trait.
Abbreviation of 陰気なキャラ (gloomy character). The term emerged in Japanese internet and youth slang, paralleling the formation of 陽キャラ.