оскорблять(treat, mention, or speak to rudely princeton.eduAntonio); критиковать(speak disrespectfully to or criticize • Do you control this camera live / wait for accidents? not a diss, genuinely curious! -- Я не критикую, мне действительно интересно знать. (Reddit)reddit.comART Vancouver)
выражать неуважение(To show disrespect to, often by insult or criticism: [The network] is often dissed for going after older, less demographically desirable viewers Lu4ik); грубить(тж. "diss" – short for "disrespect" – treat with disrespect or contempt : insult e.g. don't you go dissing somebody just because you've got a few more dead presidents than they do 'More); оскорблять('More); критиковать(to find fault with : criticize – e.g., a DJ who has dissed every album that rapper has put out 'More); "сливать"(speak disrespectfully to or criticize: • I don't like her dissing my friends • a campaign of forum postings and emails dissing the company • maybe you should stop dissing psychics and discover that part of yourself'More)