Europe is becoming bilingual, except for Britons, who are becoming monolingual.
From the economist.com
Multilingual speakers outnumber monolingual speakers in the world's population.
From the en.wikipedia.org
And babies who grow up bilingual can do this for longer than monolingual infants.
From the newscientist.com
Our system has participated both in the Spanish and English monolingual tasks.
From the en.wikipedia.org
And as Spanish becomes more important, monolingual creoles are losing service jobs.
From the economist.com
Pular is an official regional language in Guinea, and many speakers are monolingual.
From the en.wikipedia.org
Santiago is the Galician city with most monolingual population in Galician language.
From the en.wikipedia.org
According to the wiki-category Languages of Rwanda, that was not monolingual either.
From the en.wikipedia.org
All Finnish communities and towns are classified as either monolingual or bilingual.
From the en.wikipedia.org
More examples
Using or knowing only one language; "monolingual speakers"; "a monolingual dictionary"
A person who knows only one language
(monolingually) in a monolingual manner; "she had been reared monolingually"
Monoglottism (Greek monos, "alone, solitary", + glotta, "tongue, language") or, more commonly, monolingualism or unilingualism is the condition of being able to speak only a single language. ...
Relating to one language. See also bilingual, multilingual.