mistreat//mɪsˈtriːt//B2Frequency Level 12NeutralVerbmistreatInfinitivemistreatPresent tensemistreatedPast tensemistreatedPast participlemistreatingPresent participlemistreatsThird-person singular1To treat someone or something badly, cruelly, or unfairly.It is wrong to mistreat animals.Synonymabusemaltreatill-treatAntonymcherishnurture