1. to be of average, ordinary, or below-average quality; lacking excellence or distinction
The movie is mediocre and not worth watching.
O filme é medíocre e não vale a pena assistir.
2. to be neither good nor bad; ordinary or uninspired
His performance was mediocre compared to his usual standards.
Seu desempenho é medíocre comparado aos seus padrões habituais.