monolingual

/ˌmɑnəˈlɪŋɡwəl/
adjective
  1. Able to speak or use only one language.
    • Many people in the United States are monolingual English speakers.
    • The school offers special programs for monolingual children to learn a second language.
    • Being monolingual can be a disadvantage when traveling abroad.
Antonyms
noun
  1. A person who speaks only one language.
    • As a monolingual, she found it hard to communicate during her trip to Japan.
    • The class was designed for monolinguals who wanted to learn Spanish.
    • Monolinguals often struggle with multilingual workplaces.
Antonyms
What does "monolingual" mean? | whatsthatwordmean | whatsthatwordmean