cheerful
adj.
c.1400, "full of cheer," from cheer, n. + -ful. Meaning "elevating the spirits" is from mid-15c. Related: Cheerfully; cheerfulness.
〔李〕[cheer n. 高兴；-ful →] a. full of cheer；joyful；glad快乐的；高兴的；振奋的
〔李〕[cheer n. 高兴；-ful →] a. full of cheer；joyful；glad快乐的；高兴的；振奋的