irrawaddy irrationalness • irrawaddy river · · · Info · Definitions · Characters · · irrawaddy · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) the main river of Myanmar rising in the north and flowing south through the length of Burma to empty into the Andaman Sea. Synonyms: Irrawaddy, Irrawaddy River. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 r latin small letter r U+0072 w latin small letter w U+0077 y latin small letter y U+0079