Antonyms for the phrase "dampened spirits" can vary depending on the context. However, some possible antonyms include "invigorated spirits," "brightened mood," "cheerful disposition," "uplifted soul," "enlivened energy," and "renewed optimism." These words signify an opposite feeling to that of a person with dampened spirits. When someone's spirits are invigorated or uplifted, they may have a sense of renewed hope and positivity. Conversely, when spirits are dampened, a feeling of dullness, sadness, or gloom may pervade. Thus, it is essential to choose the right antonym depending on the situation that focuses on positivity and energy.