Deadweights can be defined as things or people that slow down progress, hinder growth or fail to add any value to a situation. Antonyms for deadweights would be words that represent something or someone who helps to propel things forward, adds value, and contributes to positive change. Some examples of antonyms for deadweights include catalysts, contributors, assets, enablers, promoters, facilitators, supporters, and advocates. A catalyst is something that speeds up a chemical reaction, and in this case, a person or thing that helps speed up progress. An asset is something or someone that provides value and can help to achieve success. In contrast to deadweights, these antonyms represent positive, proactive attitudes and actions that can drive change and progress.