definition of
blithe

[1] #1 blithe s. lacking or showing a lack of due concern; "spoke with blithe ignorance of the true situation". wn

[2] #2 blithe s. [blithesome, lighthearted, lightsome, light-hearted] carefree and happy and lighthearted; "was loved for her blithe spirit"; "a merry blithesome nature"; "her lighthearted nature"; "trilling songs with a lightsome heart". wn