ignoramus ( ignoramuses plural ) If you describe someone as an ignoramus, you are being critical of them because they do not have the knowledge you think they ought to have.
Translation English Cobuild Collins Dictionary
ass, blockhead, bonehead (slang) dolt, donkey, duffer (informal) dullard, dunce, fathead (informal) fool, illiterate, lowbrow, numbskull or numskull, numpty (Scot. informal) simpleton
English Collins Dictionary - English synonyms & Thesaurus
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