IPA: /nəˈtɔːr.i.əs/
KK: /nəˈtɔrɪəs/
Well-known for something bad or negative; famous for the wrong reasons.
The notorious criminal was finally caught by the police.
Notorious → It is formed from "notus" (meaning known) and the suffix "-ious" (meaning full of or characterized by). The word "notorious" means characterized by being well known, typically for some bad quality or deed.
Think of someone being 'well known' ('notus') for something negative — that's why notorious describes someone famous for bad reasons.