1. Services that are unpredictable, inconsistent, or unreliable; characterized by lack of consistency in quality, timing, or availability
The internet provider's erratic services frustrated many customers.
Os serviços irregulares do provedor de internet frustraram muitos clientes.
2. Performance or delivery that varies unpredictably, often failing to meet expected standards
The bus company was criticized for its erratic services during rush hour.
A empresa de ônibus foi criticada pelos seus serviços irregulares durante a hora de pico.