Hindustani adjective 3noun 1forms 3 adjective3 •Related to India, varying historically from the entire Indian subcontinent to India north of the Deccan, especially the plains of the Ganges and Jumna. •(old-fashioned) Any thing related to Mughal Empire. •of or pertaining to Hindustani music. noun1 •A person from India, varying historically from the entire subcontinent to India north of the Deccan, especially the plains of the Ganges and Jumna. formsHindustanis · more Hindustani · most Hindustani