blithesome vs lighthearted

blithesome and lighthearted both are adjectives.

Word	Noun	Adjective	Verb	Adverb
blithesome	No	Yes	No	No
lighthearted	No	Yes	No	No

As adjectives, blithesome and lighthearted are synonyms defined as:

Other synonyms of blithesome include blithe, light-hearted, lightsome.

blithesome (adjective)	lighthearted (adjective)
carefree and happy and lighthearted	carefree and happy and lighthearted