sunniness

/ˈsʌninəs/
noun
  1. The quality or state of being full of sunlight.
    • The sunniness of the room made it a perfect place for reading.
    • The sunniness of the desert can be overwhelming during midday.
    • We chose the beach for its sunniness and warm weather.
  2. A cheerful, bright, or optimistic quality in a person's mood or character.
    • The teacher's sunniness helped the students feel relaxed and happy.
    • Even on a rainy day, his sunniness lifted everyone's spirits.
    • Her natural sunniness made her a joy to be around.
Antonyms
What does "sunniness" mean? | whatsthatwordmean | whatsthatwordmean