Oxford Advanced American Dictionary

Definition of cheerful adjective from the Oxford Advanced Learner's Dictionary

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cheerful

adjective
cheerful pronunciation English ˈtʃɪəfl cheerful pronunciation American ˈtʃɪrfl
 
1 happy, and showing it by the way that you behaveYou're not your usual cheerful self today.He felt bright and cheerful and full of energy.You're in a cheerful mood.a cheerful, hard-working employeea cheerful smile/voice2 giving you a feeling of happinessa bright, cheerful restaurantwalls painted in cheerful (= light and bright) coloursa chatty, cheerful lettercheerfully
cheerfully pronunciation English ˈtʃɪəfəli cheerfully pronunciation American ˈtʃɪrfəli
adverbto laugh/nod/whistle cheerfullyI could cheerfully have killed him when he said that (= I would have liked to).She cheerfully admitted that she had no experience at all (= she wasn't afraid to do so). cheerfulness
cheerfulness pronunciation English ˈtʃɪəfəlnəs cheerfulness pronunciation American ˈtʃɪrfəlnəs
noun [uncountable]