What personal trait does "indomitable" most closely reflect?

The word "indomitable" refers to someone or something that cannot be subdued or overcome. It embodies a sense of strength and resilience, highlighting the ability to persist despite challenges or obstacles. This term is often used to describe a spirit or determination that is unyielding, indicating a steadfastness in the face of adversity. Therefore, the correct choice aligns perfectly with the essence of "indomitable," as it emphasizes persistence and an unwavering commitment to achieving goals or maintaining one’s stance in difficult circumstances.