lightsome

UK: /ˈlaɪtsəm/ US: (līt′səm)

WordReference Random House Unabridged Dictionary of American English © 2025

light•some¹  (līt′səm), adj. 

1. light, esp. in form, appearance, or movement;
   airy;
   buoyant;
   agile;
   nimble;
   graceful.
2. cheerful;
   gay;
   lighthearted.
3. frivolous;
   changeable.

• Middle English lyghtesum (cognate with Middle High German līhtsam). See light², -some¹ 1350–1400

light′some•ly, adv. 
light′some•ness, n. 

light•some²  (līt′səm), adj. 

1. emitting or reflecting light;
   luminous.
2. well-lighted;
   illuminated;
   bright.

• late Middle English lyghtesum. See light¹, -some¹ 1400–50

light′some•ly, adv. 
light′some•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

lightsome / ˈlaɪtsəm/ adjective

1. lighthearted
2. airy or buoyant
3. not serious; frivolous