Antonyms for the phrase "in dumps" include "happy," "cheerful," "content," "blissful," "ecstatic," and "delighted." While being "in dumps" implies being sad or depressed, these antonyms suggest a range of positive emotions and moods. For instance, being "happy" suggests feeling joyous and satisfied, while being "cheerful" suggests being optimistic and hopeful. Similarly, feeling "blissful" implies experiencing pure joy and happiness, and being "ecstatic" suggests being overjoyed and excited. Finally, feeling "delighted" expresses a sense of satisfaction and pleasure in one's life. These words serve as powerful reminders of the many positive emotions we can experience in our lives.