1. A performance, presentation, or execution that contains mistakes, imperfections, or defects that detract from its overall quality
Despite her talent, the pianist delivered a flawed performance due to technical errors.
Apesar de seu talento, a pianista entregou um desempenho falho devido a erros técnicos.
2. Any execution or completion of a task that falls short of acceptable standards
The team's flawed performance in the first half cost them the match.
O desempenho falho do time na primeira metade custou-lhes a partida.