discredit

dɪsˈkrɛdɪt

verb

harm the good reputation of.

his remarks were taken out of context in an effort to discredit him

disgrace,dishonour,bring into disrepute,damage someone’s reputation,blacken someone’s name,destroy someone’s credibility,drag through the mud/mire,put/show in a bad light,reflect badly on,compromise,give someone a bad name,bring into disfavour,stigmatize,detract from,disparage,denigrate,devalue,diminish,demean,belittle,defame,slander,cast aspersions on,malign,vilify,calumniate,smear,tarnish,besmirch,soil,slur,do a hatchet job on,smirch,besmear

noun

loss or lack of reputation or respect.

his actions were such that they brought discredit on his profession

dishonour,disrepute,ill repute,loss of reputation,loss of respect,disgrace,shame,humiliation,ignominy,infamy,notoriety,censure,blame,reproach,odium,opprobrium,stigma,harm,damage,scandal,disesteem