Anyone know if it’s still good?

Found a bottle of St Germain in the back of my alcohol cabinet, about 10 years old but unopened… Been kept in a cool dark space the entire time since it’s just been in a cabinet. Very discolored but wondering if it’s still drinkable? Or will I get sick if I drink it? I’m not too knowledgeable on alcohol so I’m not sure and thought I’d reach out to reddit to ask. Picture for reference of how discolored it is.