lighthearted

As an adjective lighthearted is

joyful, glad, taking pleasure in being alive not depressed or sad.

As adjectives the difference between easygoing and lighthearted

is that easygoing is calm, relaxed, casual and informal while lighthearted is joyful, glad, taking pleasure in being alive. Not depressed or sad.

As adjectives the difference between lighthearted and frivolous

is that lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad while frivolous is silly, especially at an inappropriate time or in an inappropriate manner.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective lighthearted is

joyful, glad, taking pleasure in being alive not depressed or sad.

As adjectives the difference between kindhearted and lighthearted

is that kindhearted is having an innately kind disposition or character while lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad.

As adjectives the difference between competent and lighthearted

is that competent is competent (able) while lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad.

As adjectives the difference between lighthearted and mundane

is that lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad while mundane is worldly, earthly, profane, vulgar as opposed to heavenly.

As a noun mundane is

an unremarkable, ordinary human being.

As an adjective lighthearted

is joyful, glad, taking pleasure in being alive not depressed or sad.

As a noun carefreeness is

the property of being lighthearted, joyous, cheerful, without a care.