The term 'sub-due' means to conquer, restrain or overcome, but what are its opposite words? Antonyms of sub-due include liberate, release, allow, encourage, free, aid, and promote. When someone is subdued, his or her spirit or willpower is broken or weakened, while a person who is liberated is free to express themselves completely. Therefore, antonyms for subdue are a reflection of positive feelings and actions, like enthusiasm and inspiration. In contrast, words like oppress and depress are quasi-synonyms for sub-due, meaning they do not convey complete opposites of the word's meaning. Knowing the antonyms of sub-due enables us to better articulate our ideas and communicate more creatively to others.