know-nothing

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A completely ignorant, uninformed, or unknowledgeable person. I wish my father had never hired a know-nothing like you to manage our accounts!

Name	Pronounced	Usage
Arnott	['a:nət]
Sibylla	zi-BUY-lah (German)	Greek, German, Swedish, Late Roman, Late Greek
Stanislovas	-	Lithuanian
HÈCtor	-	Catalan
Valentine	['væləntain]
Celestine	['selistin]