malefactor

noun

mal·e·fac·tor | \ ˈma-lə-ˌfak-tər

How to pronounce malefactor (audio)

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Definition of malefactor

1 : one who commits an offense against the law especially : felon He favors harsh punishment for chronic malefactors.

2 : one who does ill toward another a sinister malefactor abusing his power — Iron Age