Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Since the party is very informal, whether you wear the red dress or the blue dress is really （ ）.(important)
【正确答案】：UNIMPORTANT
【题目解析】：
根据前文is really，说明空格处应该填形容词，important重要的，unimportant不重要的，根据意思，前面说不正式，说明穿什么应该不重要。句意：因为聚会很不正式，所以无论你穿红色的还是蓝色的衣服，都不重要。