Longest word in the English language without any of the five main vowels

Longest word in the English language without any of the five main vowels
Who
Unknown
When
01 January 0001
Twyndyllyngs, at 12 letters long, is the longest word in the English language without any of the five main vowels. An 11 letter word with this property is the singular form, twyndyllyng. An eight letter word with this property is symphysy. Seven letter words with this property include gypsyfy, gypsyry, nymphly, and rhythms.