Antonyms for the word "cause adopt" are "prevent" and "reject". To prevent a certain outcome means to stop it from happening, whereas to adopt a cause means to support it. Thus, preventing something and causing something are quite the opposite. On the other hand, rejecting a cause is to actively oppose it, whereas to adopt it is to be in agreement with it. These antonyms serve to highlight the importance of thoughtfully considering one's choices and the impact they have on the world around us. By preventing negative outcomes and rejecting harmful causes, we work towards creating a better world for ourselves and future generations.