unconcerned

As adjectives the difference between unconcerned and lighthearted

is that unconcerned is indifferent and having no interest; aloof while lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad.

As adjectives the difference between unconcerted and unconcerned

is that unconcerted is not concerted while unconcerned is indifferent and having no interest; aloof.

As a noun taxonomy

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

As an adjective unconcerned is

indifferent and having no interest; aloof.

As an adverb indifferently

is in an indifferent manner.

As an adjective unconcerned is

indifferent and having no interest; aloof.

As an adjective unconcerned

is indifferent and having no interest; aloof.

As a noun unconcernedness is

the state or condition of being unconcerned.