The word "de-feater" means to overcome or conquer someone or something. Its antonyms are "loser," "vanquished," "defeated," and "beaten." These words carry a negative connotation, implying a failure or a lack of success. On the other hand, antonyms for "de-feater" that carry a positive connotation would be words such as "winner," "victorious," "prevailing," and "champion." These words indicate a successful and triumphant outcome. It's important to understand the opposite meanings of words like "de-feater" and to use the appropriate antonyms to convey the intended message accurately.