unmasterable

listen to the pronunciation of unmasterable
İngilizce - Türkçe
Üstesinden gelinemeyen

One can suggest that the main moral cause of Napoleon’s fall as an emperor was his UNMASTERABLE ambition.

İngilizce - İngilizce
Not masterable; that cannot be mastered
{a} not to be subdued or tamed
Incapable of being mastered or subdued
unmasterable