monoglot

[ mon-uh-glot ]
/ ˈmɒn əˌglɒt /

adjective

knowing only one language; monolingual: monoglot travelers.
composed in only one language.

noun

a person with a knowledge of only one language.

Origin of monoglot

First recorded in 1820–30; mono- + -glot

British Dictionary definitions for monoglot

monoglot
/ (ˈmɒnəʊˌɡlɒt) /

adjective

having command of a single language
written in, composed of, or containing a single language

noun

a person with command of a single language

Word Origin for monoglot

C20: from mono- + Greek glōtta tongue