Vivid or graphic (a memory, description, etc.) — strikingly lifelike and immediate.
彼は戦場での生々しい体験を語った。
He told a vivid account of his experiences on the battlefield.
小説の描写が生々しくて、まるでその場にいるようだった。
The novel's descriptions were so vivid that it felt like being there.
目撃者の話は生々しい記憶に基づいていた。
The witness's account was based on vivid memories.
Fresh (blood, scars, etc.) — recent or still raw; recently occurred and clearly visible.
事故の傷跡がまだ生々しい。
The wound from the accident is still fresh.
ニュース映像には生々しい出血の様子が映っていた。
The news footage showed graphic, fresh bleeding.