There are plenty of synonyms that you can use to replace the phrase "is the loser." Some of these synonyms include "failed," "defeated," "lost," "unsuccessful," "beaten," "trounced," "vanquished," "outdone," "outsmarted," "outmatched," and "outwitted." Each of these words has a slightly different connotation and can be used to emphasize different aspects of a given situation. For instance, "failed" might be a good choice if the person or team tried and didn't succeed, while "beaten" might be more appropriate if they were overwhelmed or outmatched from the start. Whatever the chosen synonym, it's important to choose language that accurately conveys the situation at hand.