The word "pre supposed" refers to something that is assumed or presupposed. The antonym for this word can be a phrase or a single word that has the opposite meaning, such as "disproven," "refuted," or "challenged." Other possible antonyms for "pre supposed" include words like "doubted," "questioned," "suspected," or "ignored." In some cases, an antonym for "pre supposed" could also be a word that conveys a sense of openness, curiosity or impartiality, such as "unbiased," "unprejudiced," or "undecided." Overall, antonyms for "pre supposed" are words that suggest uncertainty, skepticism, or a willingness to consider other possibilities before making a judgment.