Of or pertaining to a grouping of languages (formerly proposed to be a language family, now generally considered a sprachbund by linguists) that includes the Turkic languages (e.g. Turkish), the Mongolic (e.g. Mongolian) and Tungusic (e.g. Xibe) languages, and less often the Japanese and Korean languages.

The hypothetical prehistoric ancestor of all Altaic languages, the existence of which is now often rejected.

The Altaic language family, as distinguished from Macro-Altaic.

A proposed language family that would extend Altaic to include Korean, Jeju, Japanese, and the Ryukyuan languages.

A grouping of the Uralic language family with the Altaic languages, formerly considered a language family, now treated as an area of linguistic convergence, or possibly a sprachbund (like Altaic itself).

A linguist who subscribes to the Altaic language group hypothesis.

plural of Altaicist