Antonyms for the phrase "dashed one's hope" can include "fulfilled one's hope," "restored one's hope," "bolstered one's hope," or "nurtured one's hope." These words convey a sense of positivity and optimism, and suggest that one's expectations and desires have been met, exceeded, or at least supported in some way. By contrast, the phrase "dashed one's hope" implies disappointment, disillusionment, or despair, and suggests that one's expectations have been shattered or lost altogether. Using antonyms that express hope and confidence can foster a more positive outlook, and help one to stay motivated and engaged in pursuing their goals and dreams.