The term "more unexacting" implies a lesser degree of strictness or stringency. Its antonyms might include terms such as demanding, uncompromising, exacting, or rigorous. These words denote a greater level of scrutiny, attention to detail, or fixed standards. Whereas the term "more unexacting" suggests a more flexible or lenient approach, these antonyms suggest a far more rigid or unforgiving attitude. Depending on the context, any one of these antonyms might be appropriate as a counterpart to "more unexacting," conveying a sense of refined focus and rigorousness rather than flexibility and ease.