LIGHTSOME Meaning of LIGHTSOME in English [light.some] adj (14c) 1: free from care: lighthearted 2: airy, nimble -- light.some.ly adv -- light.some.ness n [2]lightsome adj (15c) 1: well lighted: bright 2: giving light Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012