unusurious
/ˌʌnjuːˈsɪərɪəs/Definitions
1. adjective
excessively demanding or unfair in the return of a loan or investment, typically in a way that is considered extortionate.
“The lender was accused of being unusurious in its high interest rates.”
2. noun
a charge or rate that is excessively high or unfair.
“The unusurious fees for parking in the city center were a major complaint.”