When looking for synonyms for the phrase "most exacted," there are several options to choose from. The word "precise" is a common synonym that refers to something that is accurate and exact. Another option is "meticulous," which means to pay close attention to detail and be extremely careful. "Rigorous" is a synonym that suggests being strict and demanding, while "thorough" indicates a thorough and complete job. Other alternatives for "most exacted" include "scrupulous," "painstaking," and "methodical." Ultimately, choosing the right word depends on the context and desired tone of the sentence.