Wisenheimer refers to a person who behaves in an annoying, impudent, and sarcastic manner, often demonstrates a false sense of superiority or knowledge.


US English

UK English

Part of Speech



smart aleck, wise guy, know-it-all, smarty-pants, wiseacre, clever clogs, smartypants.


Fool, simpleton, slowpoke, ignoramus.

Word Forms

Part of Speech Words
Noun wisenheimer, wisenheimers
Verb None
Adjective None
Adverb None

Example Sentences

  • Whenever the professor asked a question in the class, a wisenheimer student always raised their hand to show off their knowledge.

  • I don’t appreciate wisenheimers always trying to one-up me at parties instead of having a simple conversation.

  • The wisenheimer comedian thought he was being funny, but his jokes made everyone else uncomfortable.

  • She thought the wisenheimer remarks made during the meeting were completely unnecessary and lowered the morale of the team.


The word ‘wisenheimer’ is a slang term that is used to describe someone who is overly confident in their knowledge and tends to behave in a sarcastic, impudent or irritating manner. It is typically used to describe someone who is being intentionally difficult or annoying, especially in a way that shows off their supposed superior intellect. It can also be used to describe someone who is always trying to one-up others in conversation.

The word ‘wisenheimer’ is believed to have originated in the United States in the 1900s as a combination of the German word ‘weise’ meaning wise and the word ‘heimer’ which means home. The word may be considered somewhat outdated, but it is still used today in informal contexts, particularly in North America. The word is a noun and does not have any common prefixes or suffixes.

One possible variation of ‘wisenheimer’ is ‘smart aleck’ which has a similar meaning. ‘Smart aleck’ comes from a 19th-century American term for a swindler who pretended to have inside knowledge about horse racing. Over time, the term was used to describe a person who made smart or sarcastic comments to undermine others. Other synonyms of ‘wisenheimer’ include ‘wise guy’, ‘know-it-all’, ‘smarty-pants’, and ‘wiseacre’.

In terms of usage, ‘wisenheimer’ is considered an informal or slang term and is generally not appropriate for formal or academic writing. It is typically used in conversation or informal writing such as emails, text messages or social media posts. When using the word ‘wisenheimer’, it is important to be aware of the context and the tone of the conversation, as it can be taken as an insult or barb.