celebrative

Adjective

uncommon

(uncommon) Involving celebration; having the nature of a celebration.

Japanese Meaning

祝賀の、祝いに関する、祝祭的な

The celebrative atmosphere at the festival made even the most reserved visitors smile.

その祭りの祝祭的な雰囲気は、最も控えめな来場者さえ笑顔にした。

Sense（1）

(uncommon) Involving celebration; having the nature of a celebration.