mono·lin·gual 
/ˌmɑ:nəˈlɪŋgwəl/ adjective
/ˌmɑ:nəˈlɪŋgwəl/ adjective 1 : able to speak and understand only one language
▪ He regrets being monolingual and wishes he were bilingual. 2 : using or expressed in only one language
▪ a monolingual dictionary — compare bilingual, multilingual
▪ He regrets being monolingual and wishes he were bilingual.
▪ a monolingual dictionary — compare bilingual, multilingual
