Today’s Parola del giorno is the adjective losco, which means shady.
A friend of mine in Italy sometimes jokes when I am doing too much research:
“Fai qualcosa di losco?”
“Are you doing something shady?”
In this context, shady means someone or something dishonest or, when referring to acts, illegal.
To refer to shady when you mean sheltering from the sun’s rays, use ombroso or ombreggiato.