Definition of ignoramus noun from the Oxford Advanced American Dictionary

 

ignoramus

 noun
noun
NAmE//ˌɪɡnəˈreɪməs//
 
, NAmE//ˌɪɡnəˈræməs//
 
(usually humorous)
 
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a person who does not have much knowledge When it comes to music, I'm a complete ignoramus.
See the Oxford Advanced Learner's Dictionary entry: ignoramus