Antonyms for "dedicated oneself to" include neglect, abandon, forsake, quit, and withdraw. Neglect implies the lack of attention and care for a particular task, obligation or duty. Abandon means to give up or leave behind something that one had previously committed oneself to. Forsake conveys the idea of renouncing one's responsibilities or breaking off a relationship. Quit suggests a voluntary withdrawal from something or ending an activity before it is completed. Lastly, withdraw means to step back or remove oneself from a particular course of action. In conclusion, these antonyms demonstrate an opposite direction that individuals can follow instead of fully committing themselves to a task or cause.