aestival

adj.(rare) of or occurring in summer

"the sky was a burnished aestival blue"

同义词：estival

1. The aestival blooms in the garden were vibrant and colorful.
   花园里的夏季花朵绚丽多彩。
2. Aestival temperatures often lead to increased outdoor activities.
   夏季的温度常常导致户外活动增加。