The phrase "most computative" can be described in several ways using synonyms. Some options include: most analytical, most calculative, most mathematical, most logical, most methodical, most systematic, most numeral, most quantitative, most rigorous, or most exacting. Each of these synonyms captures the essence of the original phrase in a slightly different way, emphasizing different nuances of computation and problem-solving. Depending on the context and purpose of communication, one of these synonyms may be more appropriate than others. However, all of them convey the idea of a focused and precise approach to thinking and analysis.