1. A method or approach characterized by unpredictable, inconsistent, or unreliable performance; lacking consistency or stability
The boxer's erratic technique made it difficult for his opponent to predict his movements.
A técnica errática do boxeador dificultava que seu oponente previsse seus movimentos.
2. In sports, arts, or performance, a style of execution that varies unpredictably in quality or approach
Her erratic technique improved once she started with a proper coach.
Sua técnica errática melhorou depois que começou a trabalhar com um treinador adequado.