Home › Words › T › tachylaliatachylalia/ˌtækɪˈleɪliə/tachylalia means extremely rapid speech.Among words judged in Lexicurio's Arena, tachylalia ranks #673 of 42,749 for Qualifying.tachylalia is pronounced /ˌtækɪˈleɪliə/.EtymologyFrom tachy- + -lalia.nounExtremely rapid speech.Definitions & examples from Wiktionary (CC BY-SA 3.0).