Word Ways
Abstract
Four is the definitive "truthful word" because it has four letters. "Unfour" is also truthful as it doesn't have four letters, but is untruthful as it's not a real word. Following an excursion into the un-section of the dictionary I found heaps of truthful and untruthful words, as well as some both truthful and untruthful--like unfour but real words. Here's a sampling, mostly of linguistic interest.
Recommended Citation
(2006)
"Un-Truthful Words,"
Word Ways: Vol. 39
:
Iss.
1
, Article 23.
Retrieved from:
https://digitalcommons.butler.edu/wordways/vol39/iss1/23