The phrase "give a boost to" is often used to describe actions that help someone or something to improve or become more successful. However, there are also words that express the opposite meaning. For instance, "undermine" means to weaken or damage someone or something, and "hinder" means to make it difficult for someone or something to succeed. Another antonym can be "obstruct" which means to block or prevent progress. Similarly, "thwart" means to prevent someone or something from succeeding, while "impede" means to slow down or prevent progress. By understanding these antonyms, we can appreciate the importance of giving positive support and avoiding negative influences that may hinder or undermine success.