Decry

blame criticize condemn denounce discredit knock hit slam pan malign disparage belittle minimize lower devalue diminish downgrade underrate depreciate underestimate mark down discount take away poor-mouth put down abuse run down defame vilify censure reprehend reprobate detract calumniate traduce aspersion derogate opprobriate cry down do a number on dump on rail against rap take swipe at throw stones at write off