In linguistics, a basilect is a dialect of speech that has diverged so far from the standard language that in essence it has become a different language. A basilect represents the opposite end of the scale of linguistic formality from an acrolect.

Basilects typically differ from the standard language in pronunciation, vocabulary, and grammar, and can often develop into different languages, as the basilects of Vulgar Latin eventually developed into different Romance languages.

Language varieties and styles

Basilekt | 下层方言