What is another word for unsparingness?
Pronunciation: [ʌnspˈe͡əɹɪŋnəs] (IPA) 
Unsparingness refers to the quality of being severe, rigorous, or unrelenting in one's actions or judgments. Some synonyms for this word include sternness, strictness, harshness, severity, firmness, rigidity, exactitude, and inflexibility. These synonyms all underscore the idea of being unyielding and uncompromising in one's approach to a particular matter. Whether it be in the workplace or academic setting, these synonyms are often utilized to describe someone who refuses to accept anything but the highest standards of excellence. In essence, unsparingness can be seen as a positive characteristic, as it represents an unwavering commitment to achieving the best possible outcomes.
