1. Wine that lacks flavor, aroma, or character; wine that is bland or insipid
The restaurant served a tasteless wine that disappointed all the guests.
O restaurante serviu um vinho sem sabor que decepcionou todos os convidados.
2. Wine of poor quality with minimal distinguishing characteristics
This tasteless wine is not worth the price they're asking.
Este vinho sem sabor não vale o preço que estão pedindo.