Indescribable
 
indescribable
indescriptible adjectif ou adverbe,
inqualifiable adjectif ou adverbe
Exemple d'usage de indescribable
In mathematics, a totally 
indescribable cardinal is a certain kind of large ...   More generally, a cardinal number κ is called Πnm-
indescribable if for every ... 
(Crédit : Wikipedia)