lighthearted
definition
cheerful and carefree
example
The movie was a lighthearted comedy that had the audience laughing throughout its entire duration.
synonyms
carefreecheerfuljovial
word origin — The word 'lighthearted' is derived from 'light' meaning not heavy or serious and 'hearted', referencing one's disposition or mood. It combines Middle English 'light' (from Old English) and 'hearted' (from 'heart').