誹る

そしる
to slander
to libel
to criticize

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そしる【謗る･誹る】

〔悪く言う〕 slander; calumniate; libel; vilify; defame; revile; abuse; disparage; traduce; speak ill of…; run [cry, play] down; 〔非難する〕 censure; blame; criticize; fling [sling, throw] mud at sb.

●陰で人をそしる backbite sb; speak ill of sb behind his back

・仏の教えをそしる revile the teachings of Buddha

・冷たいやつとそしられる be criticized as cold.