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ignorant

 
/ˈɪg·nər·ənt/ adj

Definition

having no knowledge or awareness of something or of things in general: We were very young, ignorant, unskilled men. ignorance
 
/ˈɪg·nər·əns/ n [U]
You have to assume that incoming students have an almost total ignorance of the rules of grammar.
(Definition of ignorant adj from the Cambridge Academic Content Dictionary © Cambridge University Press)

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