The term "most nullified" can be used to describe something that has been completely negated or cancelled out. Synonyms for this term include "annulled", "voided", "invalidated", "revoked", "quashed", "rescinded", "null and void", "worthless" and "invalid". These terms are often used in legal contexts, where the nullification of contracts, agreements or rulings can have serious consequences. In other contexts, they may be used to describe situations in which something that was once important or valuable has lost its significance or authority. Overall, these synonyms all convey a sense of finality and complete negation.