felonious

US /fəˈloʊ.ni.əs/
UK /fəˈloʊ.ni.əs/
1.

trọng tội

relating to a felony (= a serious crime that can be punished by one or more years in prison):

:
•
They try to keep offenders away from the factors that influenced their felonious behavior in the past.
:
felony