English

Noun

wisehead ‎(plural wiseheads)

1. (obsolete, sarcastic) A person who is wise or who considers himself or herself to be wise.
   • c. 1850, William Makepeace Thackeray, The Wolves and the Lamb, act 2,

     Why! Do you think I want that picture taken down: and another Mrs. Milliken? Wisehead!

Synonyms

• smart aleck
• wiseacre

References

• Oxford English Dictionary, 2nd ed., 1989.