A flaw is not necessarily whether you liked a particular wine or not, but character flaws that are created through the wine making process or lack of controls from vineyard to bottle. These flaws could be the result of over-exposure to sulfur or oxygen, or as the result of an undesired bacterial reaction in the wine. Other flaws might be: Over-aged, Moldy, Over-oaked (or Woody), Stagnant, Raisiny, Burnt or Cooked, Lees Odor, Heat Fermentation, Ullaged, Corked, Charcoaled, or Alcoholic.
A stone with blemishes and foreign matter.
see disadvantages above