If you hear wine tasters say, "Wow! This wine's got a lot going on!" or "This wine just won't quit!," what they're really saying is that the wine is complex. The term is what every maker of fine wine strives for—it describes a multidimensional wine that exhibits several layers of aromas and flavors, yet has achieved perfect balance and finesse. A complex Zinfandel, for example, may combine aromas ranging from blackberry and plum to pepper and earth - all in one sip.