One of the mysteries of the English language finally explained.
A person who behaves in an irritatingly smug or arrogant fashion, typically by making clever remarks and displaying their knowledge.
smug, self-satisfied, pleased with oneself, proud of oneself, self-approving, self-congratulatory, self-admiring, self-regardingView synonyms
- ‘The wisenheimers who paid no respects to such dolts did not get us into this mess - straight-faced true believers of all stripes did.’
- ‘It was always tempting to try and prove that one was enough of a wisenheimer oneself to appreciate anything they could dish out.’
Early 20th century: from wise + the suffix -(n)heimer found in surnames such as Oppenheimer.
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