a hollow laugh

Translations
пустой смех
He gave a hollow laugh, not really finding the situation amusing.
Он издал пустой смех, не находя ситуацию по-настоящему забавной.
Definitions
A hollow laugh is a type of laughter that lacks genuine emotion or joy, often sounding empty or insincere, typically indicating discomfort, sarcasm, or a facade of amusement.