Answer: sunnier

AnswerCrossword Clue
SUNNIERNot so gray
SUNNIERBrighter, in a way
SUNNIERMore cheerful
SUNNIERMore cheerful.
SUNNIEROf a more cheerful nature
SUNNIERLess cloudy
sunniercheerful; jolly
sunnierfull of sunshine
sunnierSUNNY, filled with sunlight