Illiquid
An asset or security that cannot be converted into cash very quickly (or near prevailing market prices).
Investopedia Commentary
A house is a good example of an illiquid asset.
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illiquid
Of or relating to an asset that is difficult to buy or sell in a short period of time without its price being affected. For example, a large block of stock or a small amount of an infrequently traded stock is likely to be difficult to sell without a reduced price being offered to potential buyers. Compare liquid 1.
Of, relating to, or being an investment position in which a low proportion of assets is in cash or near-cash, thereby creating difficulty for the investor who is trying to raise funds for another purpose.