← BackshareGuessblitheful/ˈblaɪðfəl/adjectiveShowing a cheerful, carefree, and lighthearted attitude.The children played in the park with blitheful energy.Her blitheful laughter filled the room with joy.He gave a blitheful wave as he set off on his adventure.SynonymscheerfuljoyfulcarefreeAntonymssadsolemn