Hindustani | { } a. [ Hind. Hindūstānī an Indian, fr. Hind. and Per. Hindūstān India. ] Of or pertaining to the Hindoos or their language. -- n. The language of Hindustan; the name given by Europeans to the most generally spoken of the modern Aryan languages of India. It is Hindi with the addition of Persian and Arabic words. [ 1913 Webster ] Variants: Hindoostani, Hindoostanee |