The antonyms for the phrase "resigned oneself" would include words such as "fighting," "hopeful," "determined," and "persistent." These words imply a sense of determination to overcome struggles and obstacles rather than accepting defeat. Other antonyms could include "persistent," "optimistic," and "tenacious." All of these words imply a sense of resilience and a refusal to give up. Choosing to not resign oneself means taking control and actively pursuing a better outcome, rather than accepting whatever comes. When faced with challenging situations, it is important to keep a positive mindset and keep pushing forward instead of giving up or accepting defeat.