The definition of 'carefreeness' & the word 'carefreeness' in example sentences or phrases

Noun
1
the cheerful feeling you have when nothing is troubling you
2
the trait of being without worry or responsibility

Synonyms of the word 'carefreeness' & Antonyms of the word 'carefreeness'.

Noun
Synonymsinsouciance, lightheartedness, lightsomeness,