Cheerful, happy; untroubled by worries or sadness; carefree. Now only with reference to the heart or spirits. Formerly also in †light of: delighted…

Carefree, unconcerned. Obsolete.

Light-hearted, cheerful, happy; not weighed down by care, pain, or sorrow. Also: enlivening, entertaining.

Of a person: free of care or sorrow; cheerful; carefree, easy-going.

Having a free heart, in various senses; frank, open, unreserved; not burdened with anxiety, guilt, or suspicion; acting on the spontaneous impulse…

(un-, prefix1 affix 1.)

Easy and sprightly in manner; having or affecting well-bred or easy sprightliness; affecting airy self-satisfaction or unconcern.

Free from care or anxiety.

cheerful; = light-hearted, adj.

carefree, unworried.

Cheerful, merry, in good spirits. Also: cheering, encouraging. Cf. cheerio, adj. Obsolete.

Designating or characteristic of a type of personality which is comfort-loving, sociable, and easy-going, classified by Sheldon as being…

Providing amusement or diversion; entertaining, light-hearted.