cheerful
adj. B1 Intermediate Oxford US //ˈtʃɪɹfəɫ// UK //tʃˈiəfəl// cheer·ful
adj. feeling or showing that you are happy. You use this to describe someone who smiles a lot or a place that feels bright and positive.
adj. noticeably happy and optimistic in mood or disposition. Often used to describe physical environments that are bright and pleasant to be in.
She is always cheerful in the morning.
The kitchen was painted a cheerful yellow to make the space feel more welcoming during the dark winter months.
Despite the challenging circumstances of the delay, the flight crew remained remarkably cheerful, which helped prevent the passengers from becoming frustrated or anxious.
From Middle English chereful, cherful, equivalent to cheer + -ful.
Usage
Commonly used to describe both people and inanimate objects like rooms or colors.