lightsomeness vs carefreeness

lightsomeness and carefreeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
lightsomeness	Yes	No	No	No
carefreeness	Yes	No	No	No

As nouns, lightsomeness and carefreeness are synonyms defined as:

lightsomeness and carefreeness: the cheerful feeling you have when nothing is troubling you

Other synonyms of lightsomeness include insouciance, lightheartedness.

lightsomeness (noun)	carefreeness (noun)
the trait of being lighthearted and frivolous	the trait of being without worry or responsibility
the gracefulness of a person or animal that is quick and nimble	the cheerful feeling you have when nothing is troubling you
the cheerful feeling you have when nothing is troubling you