Ngadha (also known as Ngada or Ngad'a) is an Austronesian language, one of six languages spoken in the central stretch of the Indonesian island of Flores. From west to east these languages are: Ngadha, Nage, Keo, Ende, Lio, and Palu'e. These languages form the proposed Central Flores group of the Sumba–Flores languages, according to Blust (2009).Ngadha is the only language reported to have a retroflex implosive /ᶑ /.Ngadha is "bizarre" because it has no prefixes nor suffixes at all.