When it comes to describing a powerful and intense display of fierceness, the word "more ferociousness" may not always adequately capture the extent of what you're trying to convey. Here are some alternative synonyms to consider when describing a more extreme level of ferocity: barbarity, brutality, savagery, ruthlessness, viciousness, malevolence, tenacity, strength, power, and intensity. Each of these words conveys a different aspect of ferocity that may better capture the essence of what you're trying to express. Whether it's describing an animal attack or a political conflict, choosing the right synonym can help you communicate your message with greater precision and impact.