The word "more vitiate" implies an increase in the impairment or corruption of something. Antonyms for this word would be terms that mean the opposite, such as "improve," "enhance," "honor," "strengthen," and "purify." These antonyms suggest the idea of making something better, stronger, or more valuable rather than adding negative qualities to it. By using these antonyms, one can express a positive outlook or focus on solutions rather than problems. For example, instead of saying "more vitiate," one could say "enhance" or "strengthen," which would carry a more constructive connotation. Antonyms provide a useful tool for changing the tone and meaning of words and sentences.