miserable; pitiful; tragic; wretched; horrible; terrible
painstaking
戦場は惨憺たる光景が広がっていた。
A wretched scene spread across the battlefield.
惨憺たる成績に本人も落胆を隠せなかった。
Even the person himself could not hide his disappointment at the miserable results.
地震後の街は惨憺たる有様だった。
The city after the earthquake was in a wretched state.