The word propoundments means to put forward an idea or theory for consideration. Some possible antonyms for this word include retract, withdraw, withhold, and suppress. These words imply the opposite of putting something forward; instead, they suggest undoing, holding back, or hiding information. Other antonyms that could be used include reject, oppose, contradict, and disprove. These words suggest that the original idea or theory is not valid or true, and that it should be actively opposed or disproven. Each of these antonyms presents a different perspective on the act of propounding an idea, suggesting the possibility of disagreement or even conflict.