Dravidian \Dra*vid"i*an\, a. [From Skr. Dr[=a]vi[dsdot]a, the name of the southern portion of the peninsula of India.] (Ethnol.) Of or pertaining to the Dravida. {Dravidian languages}, a group of languages of Southern India, which seem to have been the idioms of the natives, before the invasion of tribes speaking Sanskrit. Of these languages, the Tamil is the most important.