cheeriness

/ˈtʃɪri.nəs/
noun
  1. The quality or state of being happy, bright, and full of good spirits.
    • Despite the long hike, the children's cheeriness never faded.
    • Her cheeriness made everyone in the office feel better on a rainy Monday.
    • The room was decorated with yellow flowers, adding a sense of cheeriness to the party.
Antonyms
What does "cheeriness" mean? | whatsthatwordmean | whatsthatwordmean