wisenheimer
/ˈwaɪzənˌhaɪmər/
noun
- A person who tries to appear clever or knowledgeable in an annoying way.
- The class wisenheimer always raised his hand to correct the teacher.
- Nobody likes a wisenheimer who interrupts with pointless facts.
- He acted like a wisenheimer at the meeting, but his ideas weren't helpful.
Synonyms