The term "am worsted" is not an actual word, therefore there are no antonyms for it. However, if we consider the word "worsted" which means to be defeated or beaten, we can come up with a few antonyms such as victorious, triumphant, successful or conquering. These antonyms are opposite in meaning to the word "worsted" and imply a sense of achievement and success. So, if one is not feeling the effects of being "worsted", they might be experiencing the pleasures of being victorious, triumphant or successful in their efforts.