sub-prime
/ˌsʌbˈpraɪm/adjective
- denoting or relating to credit or loan arrangements for borrowers with a poor credit history, typically having unfavourable conditions such as high interest rates次级的; 次贷的（指借款者因信用记录不良而在贷款时经常要面临高利率等不利因素）：
the sub-prime mortgage market.
次贷抵押市场。