The phrase "bringing fruition" refers to the act of achieving a desired result or outcome. Antonyms for this phrase could include things like stalling, preventing, or hindering progress. For example, if a team is working on a project and encountering obstacles that prevent them from reaching their goals, this would be the opposite of bringing fruition. Similarly, if an individual is struggling to make progress in their personal life or career, this could be seen as a block to bringing fruition. Other antonyms might include terms like stagnation, delay, or failure to produce results. Regardless of the context, these antonyms all suggest a lack of progress or forward momentum.