i-adjective
cheerful; buoyant; lighthearted
Describes a person's mood or personality as carefree and upbeat. Often used for someone who is easygoing and not weighed down by worries.
彼はいつも気軽い性格で、周りを明るくする。
He always has a cheerful personality and brightens up those around him.
今日はなんだか気軽い気分だ。
I feel kind of lighthearted today.