The antonyms for "sticked to" are varied and dependent on context. For example, they could include "abandoned," "disregarded," "ignored," "neglected," or "veered off." To abandon something means to give it up entirely, while disregarding something means to pay no attention to it. Ignoring something is similar to disregarding it, and neglecting something is failing to care for it properly. Finally, veering off is a sudden change in direction or path, which contrasts with sticking to a plan or course of action. Overall, the antonyms for "sticked to" all involve a lack of adherence or commitment to something.