Antonyms for the word "controversializes" would be words that indicate agreement, unity, or concord. Some possible antonyms include: harmonizes, unites, conciliates, reconciles, agrees, approves, supports, endorses, validates, or confirms. These words signify the opposite of what it means to "controversialize", which is to create controversy, debate or disagreement. Instead, antonyms suggest a resolution or a consensus that brings people together. Using antonyms in speech or writing can help to convey a positive or constructive message that fosters cooperation and understanding among diverse perspectives.