faible

/fɛbl/
1.
adjective

weak (physically)

low (intensity, power, volume, etc.)

poor (ability or performance)

Le signal Wi‑Fi est vraiment trop faible ici.

The Wi‑Fi signal is really too weak here.

2.
nounmasculine

soft spot

weakness (for someone or something)

J'ai un petit faible pour le chocolat noir.

I have a bit of a soft spot for dark chocolate.