Antonyms are words that are opposite in meaning to another word. For the word "re-affirms," which means to confirm or emphasize again, some antonyms include deny, reject, dispute, oppose, challenge, question, nullify, and contradict. These words convey a sense of doubt, opposition or contradiction. When one re-affirms something, they are expressing their belief or support for it. However, when using antonyms, they convey a sense of uncertainty or disbelief. Opposites are integral in expressing contrasting opinions and ideas. Thus, understanding antonyms for words such as "re-affirms" can improve one's communication and writing skills.