notoriously bad, having a bad reputation
Today the police shot dead one of Mumbai's most infamous goondas.
in (not)#fama (talk, rumour, report, reputation) (Latin)
ignoble, odious, reprehensible, sordid, unconscionable
in (NOT GOOD OR BAD) +famous. FAMOUS for BEING NOT GOOD or NOTORIOUS IN + FAMOUS (well-known). famous for his noteriety.