underbanked
adj.— «During the past few years, Wal-Mart has been selling financial products to low-income customers who may shop in its stores, but don’t have relationships with traditional banks—those that the industry defines as the “underbanked.”» —“Can Wal-Mart cash in on financial services?” by Robin Sidel, Ann Zimmerman Post-Gazette (Pittsburgh, Pennsylvania) July 6, 2006. (source: Double-Tongued Dictionary)