呑気

(1)free from worry or anxiety; "knowing that I had done my best, my mind was easy"; "an easy good-natured manner"; "by the time the chsild faced the actual problem of reading she was familiar and at ease with all the elements words"

(2)心配または不安がない

(3)free of trouble and worry and care; "the carefree joys of childhood"; "carefree millionaires, untroubled financially"

(4)問題、心配と注意のない

(1)