Kräftigst
Kräftigst is the superlative form of the German adjective "kräftig," meaning strong or powerful. It denotes the highest degree of strength or power. For instance, one might describe the kräftigst wind experienced as the most intense and forceful gale. Similarly, if a person is said to have the kräftigst voice, it implies their vocal projection is the loudest and most powerful among all voices considered.
The word is used in various contexts to indicate the peak of a particular quality related to