know-nothing
Ignorant; characterized by foolish denial of facts or beliefs in that which is not trueIgnorant; characterized by foolish denial of facts or beliefs in that which is not true.
Meaning
1 senses(not comparable)Ignorant; characterized by foolish denial of facts or beliefs in that which is not true.
Origin
Essentially deverbal in nature, albeit not from a unitary phrasal verb. Compare do-nothingEssentially deverbal in nature, albeit not from a unitary phrasal verb. Compare do-nothing § Etymology.
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See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.