Today's Parola del Giorno is the adjective coriaceo, which means tough.
It is used when talking about an opponent, and you will often see this in the context of sports.
See the adjective used below:
Nonostante la giocatrice abbia una posizione bassa in classifica, le altre giocatrici la conoscono per essere coriacea e ostinata sul campo! Non getta mai la spugna e corre da un angolo all’altro del campo, rinviando ogni colpo!
Even though the player was ranked low, the other players know her as tough and dogged on the court! She never throws in the towel and runs from one corner of the court to the other, returning every shot!