Rather negative description (also age-weak, superimposed) for a wine in the context of a wine-appeal, after it has passed its peak in development and is now constantly declining and losing quality. This is caused by chemical changes with ultimately negative effects on aroma, colour and taste. However, the wine is still edible with restrictions. The clearly negative "final stage" is called dead (inedible). The term Alterston (also Altl) has a different meaning. For the ageing process, see ageing and bottle-ageing, and for the optimum time for drinking, see ripeness.