mirthless

You know," he says with a mirthless chuckle, "they beat me up pretty good.

Tatsu's mirthless laugh rang out against the sound of dripping rain.

Again she laughed that almost mirthless laugh for which her mother had called her to account a moment before.

Yet more similar are the speeches of the madmen with their horrible words, and those of fools with their mirthless puns.

He laughed, a nervous, mirthless kind of laugh, and slipped his rifle to his other hand.

He laughed, with that cruel, mirthless inflection so characteristic.