The antonyms for the word "re-affirmed" include words such as challenge, deny, negate, refute, and contradict. These words indicate the opposite of re-affirmation, indicating that something is being questioned, contradicted, or denied. For instance, if someone challenges a decision, it means they are not in agreement with it and are calling for a reassessment. Negation, on the other hand, is the act of rejecting something, such as a proposal, idea, or theory. Meanwhile, if someone refutes an argument, they are offering evidence to prove it wrong. Finally, to contradict means to declare something as false or in disagreement with something else. These words provide a useful counterpoint to the idea of re-affirmation.