noun
spring in full bloom; spring at its height
Evokes a scene where spring flowers are at their peak, often used in poetic or descriptive contexts.
公園は春爛漫で、桜が満開だった。
The park was in full spring bloom, with cherry blossoms at their peak.
春爛漫の陽気に誘われて
Lured by the glorious spring weather, I went out for a walk.