Definition of evidentiality in US English:

evidentiality

noun

formal
  • See evidential

    • ‘But in some languages, including Tariana, you always have to put a little suffix onto your verb saying how you know something - we call it ‘evidentiality’.’
    • ‘This grammatical category, referring to information source, is called ‘evidentiality’.’
    • ‘In languages using a grammatical system known as evidentiality, for example, it's impossible to make a statement without also revealing why you believe that it's true.’
    • ‘The questionnaire studies are problematic because they do not assess authenticity or evidentiality.’

Pronunciation

evidentiality

/ˌeviˌdenCHēˈalitē/