From Longman Business Dictionaryunderwriting riskˈunderwriting ˌrisk [countable, uncountable] when an INVESTMENT BANKER buys all of the new shares that a company is selling, the risk that the price will go down before they are sold, or that investors will not want to buy them → riskunderwriting riskˈunderwriting ˌrisk [countable, uncountable]INSURANCE the risk that an insurance company will have to give a customer money to cover loss or damage → risk