The definition of festive refers to something for a party or cheerful and celebratory.(adjective)
An example of a festive occasion is a parade.
See festive in Webster's New World College Dictionary
Origin: L festivus < festum: see feast
See festive in American Heritage Dictionary 4
Origin: Latin fēstīvus
Origin: , from fēstus; see dhēs- in Indo-European roots.
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