What is another word for most vitiate?
Pronunciation: [mˈə͡ʊst vˈɪʃɪˌe͡ɪt] (IPA) 
The term "most vitiate" refers to something that greatly weakens, impairs, or corrupts a particular thing or situation. Some synonyms for "most vitiate" could include words like "undermine", "weaken", "damage", "harm", or "undo". Other possible synonyms might include terms such as "taint", "pollute", "contaminate", "compromise", or "subvert". Depending on the context of the original phrase, different words may be more appropriate than others, as each of these synonyms carries slightly different connotations or shades of meaning. Nevertheless, all of these terms describe something that has a significant negative impact on the thing being discussed.
