The word "surrender" implies giving up something or admitting defeat. Its antonyms are words that signify continuation or persistence. Some of its antonyms are resist, fight, struggle, persist, contend, and endure. One might resist surrendering to an opponent in a game or a battlefield, and instead, fight until the end. One might also persist in overcoming an obstacle instead of surrendering to it. To contend, one would use every means at their disposal to win or achieve a goal. Endurance or perseverance is another opposite of surrender, as one can continue striving or working to achieve a goal despite challenges or setbacks. In summary, the antonyms of surrender depict resilience or persistence rather than giving up.