0-liquidity in cryptocurrency refers to a situation where a digital asset has extremely low trading volume on the market. This means that there are very few buyers and sellers actively trading the cryptocurrency, making it difficult to buy or sell large amounts without significantly affecting the price.

When a cryptocurrency has 0-liquidity, it can be challenging for investors to exit their positions or find buyers for their holdings, as there may be little demand for the asset. This lack of liquidity can lead to increased price volatility and potential price manipulation by larger market participants.

Investors should be cautious when dealing with cryptocurrencies with 0-liquidity, as it can be difficult to accurately determine the true market value of the asset. It is important to carefully research and understand the liquidity of a cryptocurrency before investing, as low liquidity can pose risks to investors in terms of price stability and ease of trading.