Description for the overall sensory impression of a wine in the context of a wine address. Similar terms are brittle, not accessible or not yet accessible, undeveloped, restrained and reserved. This is usually understood to mean a young wine that has yet to develop or unfold its characteristics and has not yet reached its climax. For particularly long-lasting top wines with a great potential for development, this may well take several (many) years, which is also described as "a wine with a future". However, a wine can also appear closed if some time is still required for development after decanting (aeration). See regarding the maturing process under ageing, bottle ageing and shelf life, as well as regarding the best possible time to enjoy the wine under drinking maturity.