blithe /blaɪð $ blaɪð, blaɪθ/ BrE AmE adjective
[ Language: Old English ]
1 . seeming not to care or worry about the effects of what you do:
a blithe disregard for the facts
2 . literary happy and having no worries
—blithely adverb :
He seems blithely unaware of how much anger he’s caused.