Cheery (adjective)

1. Bright, happy and lively in appearance or manner.
2. Optimistic and full of hope.

Origin:

From the middle english word cherie, meaning dear.

Examples:

1. The sun was shining and the sky was a cheery blue.
2. She had a cheery disposition and always seemed to be in a good mood.
3. The room was decorated with cheery colors and patterns.
4. The cheery flowers in the garden brought a smile to her face.
5. He greeted me with a cheery hello.