If a wine is bad, it may be _________ when _______

Critical term for a wine without sufficient acidity, therefore lacking "structure."
An older wine, fully mature, of such age that it's declining
Burns the tongue and palate, generally a sign of excessive or unbalanced alcohol.
Wine afflicted by an undetectable cork fungus (2,4,6-TCA) that imparts an unpleasant musty flavour that obliterates all other aromas and flavours in the wine.
A jovial term for the kind of simple, uncomplicated wine that's perfect for washing down spaghetti or pizza. Need not be a negative term, unless you're a wine snob.
Usually signifies that a wine is immature and needs cellar time

If a wine is bad, it may be _ when