1.
Someone who is cheerful is happy and shows this in their behaviour.
They are both very cheerful in spite of their colds...
Jack sounded quite cheerful about the idea.
= cheery
ADJ
• cheerfully
'We've come with good news,' Pat said cheerfully...
She greeted him cheerfully.
ADV: ADV with v
• cheerfulness
I remember this extraordinary man with particular affection for his unfailing cheerfulness.
N-UNCOUNT: oft adj N
2.
Something that is cheerful is pleasant and makes you feel happy.
The nursery is bright and cheerful, with plenty of toys.
ADJ