Ad melius inquirendum is a Latin phrase that roughly translates to "investigate further for the better." There are several synonyms for the word ad melius inquirendum that convey a similar idea including "delve deeper," "scrutinize," "explore further," "research thoroughly," "probe deeper," and "investigate more deeply." All of these words suggest the need for a more in-depth examination of a particular subject to gain a better understanding of it. Using these synonyms in place of ad melius inquirendum can add variety to communication and help prevent repetition in writing. It can also highlight the importance of taking the time and effort to investigate thoroughly for improved results.