Make Our Dictionary Yours
Sign up for our weekly newsletters and get:
By signing in, you agree to our Terms and Conditions and Privacy Policy.
Success!
We'll see you in your inbox soon.
Demented or crazy.
Disputed. Possibly from Old English ātor (“poison”), and thus related to English atter. Alternatively from hat-makers suffering from Korsakoff's syndrome due to handling mercury-contaminated felt.
From Wiktionary
Find similar words to mad-as-a-hatter using the buttons below.