Definition from Wiktionary, the free dictionary
supersenior (not comparable)
- (finance) Of a status higher than that of a senior lender.
2007 October 31, Nick Cumming-Bruce, “Mortgage Woes Push UBS to Its First Loss in 5 Years”, New York Times:
- UBS reported that it had $16.8 billion invested directly in residential mortgage-backed securities and $20.2 billion worth of supersenior securities, which are paid back ahead of other similarly rated securities in the case of a default.