Most nowin, as a phrase, does not exist in English vocabulary. Therefore, it is not possible to provide antonyms for it. However, we may consider the meanings of individual words, 'most' and 'nowin'. As 'most' means greatest in amount or degree, some antonyms of it would be least, fewest, or minimum. On the other hand, 'nowin' is not an English word. However, 'no win' is a phrase that could be associated with 'nowin'. The antonyms of 'no win' would be winning, gaining, achieving, or succeeding. It is crucial to choose the right and precise words to convey the intended meaning effectively.