Caucasian language

n. several of the languages spoken in the Caucasus

The languages of the Caucasus are a large and extremely varied array of languages spoken by more than ten million people in the Caucasus region of Eastern Europe and Western Asia, between the Black Sea and the Caspian Sea. Linguistic studies allow those languages to be classified into several language families, with little or no discernible affinity to each other.
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Noun
1. a number of languages spoken in the Caucasus that have no known affiliations to languages spoken elsewhere
(synonym) Caucasian
(hypernym) natural language, tongue
(hyponym) Chechen