Prospects are possibilities or opportunities for success or advancement. Antonyms or opposites for the word prospects could include words like despair, hopelessness, and discouragement. These words all convey a sense of negativity or lack of opportunity. Other antonyms for prospects might include stagnation, decline, and regression. These words suggest a lack of progress or movement toward achieving success or betterment. It is helpful to consider antonyms for a word like prospects in order to understand the full range of its meaning and to be able to use it effectively in communication.