IPA: /ˈlaɪtsəm/
KK: /ˈlaɪtsəm/
Having a cheerful and carefree quality; bright and light in movement or appearance.
The lightsome atmosphere of the garden made everyone feel happy and relaxed.
Lightsome → It is formed from "light" (from Old English *leoht*, meaning not heavy or bright) and "-some" (meaning characterized by or full of). The word "lightsome" means characterized by lightness or brightness, often in a cheerful or lively manner.
Think of something that is 'not heavy' ('light') and 'full of' ('-some') brightness or cheerfulness — that's why lightsome describes a cheerful and bright quality.