Despite being [a] disorganised procedure, it was successful and many people wanted to attend next year's festival.

a 是不定冠词，用于单数可数名词前，表示"一个"或"某一"。 disorganised 是形容词，由前缀 dis-（表示"否定"或"相反"）和 organised（有组织的）组成，意思是"无组织的"、"混乱的"。 procedure 是名词，指"程序"、"步骤"或"流程"。 a disorganised procedure 指"一个混乱的程序"或"无组织的流程"。