monolingual

1 ENTRIES FOUND:
monolingual /ˌmɑːnəˈlɪŋgwəl/ adjective
monolingual
/ˌmɑːnəˈlɪŋgwəl/
adjective
Britannica Dictionary definition of MONOLINGUAL
1 
: able to speak and understand only one language
2 
: using or expressed in only one language — compare bilingual, multilingual