Sadi Syllabification: (Sa·di)Pronunciation: /ˈsädē/ (also Saadi)Definition of Sadi (circa 1213-circa 1291), Persian poet; born Sheikh Muslih Addin. His principal works were the collections known as the Bustan (1257) and the Gulistan (1258). Sadi in other Oxford dictionaries Definition of Sadi in the British & World English dictionary