Word.ws English Dictionary

mad hatter

mad hatter noun: a lunatic; a highly eccentric person.

mad hatter: a lunatic; a highly eccentric person
Image: Lewis Carroll, Public domain, via Wikimedia Commons

Noun

mad hatter (plural mad hatters)

  1. A lunatic; a highly eccentric person.

Forms of mad hatter

pluralmad hatters

Origin of mad hatter

The term is attested since at least the 1790s, and a Mad Hatter character appears in Lewis Carroll's Alice's Adventures in Wonderland. See mad as a hatter.

Questions about mad hatter

What does mad hatter mean?
Mad hatter means a lunatic; a highly eccentric person.
What part of speech is mad hatter?
Mad hatter is a noun.
What is the plural of mad hatter?
The plural of mad hatter is mad hatters.

Words near mad hatter in the dictionary

  1. mad dog
  2. mad dogs
  3. mad dogs and Englishmen
  4. mad enough to chew nails
  5. mad for it
  6. mad hatter
  7. mad hatter disease
  8. mad hatter syndrome
  9. mad hatters
  10. mad honey
  11. mad itch

Source and license

Adapted from Wiktionary: mad hatter (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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